[Qemu-devel] [PULL 0/7] target-arm queue

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

Last batch of bugfixes before hardfreeze...

-- PMM

The following changes since commit f421f05754ac5aabe15f12051390204116408b00:

  Merge remote-tracking branch 'remotes/kraxel/tags/pull-seabios-1.8.1-20150316-1' into staging (2015-03-16 10:58:11 +0000)

are available in the git repository at:


  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150316

for you to fetch changes up to b8d43285a4db12156c40ba6fdbd8002c383fcbca:

  linux-user: Access correct register for get/set_tls syscalls on ARM TZ CPUs (2015-03-16 12:30:47 +0000)

----------------------------------------------------------------
target-arm queue:
 * fix handling of execute-never bits in page table walks
 * tell kernel to initialize KVM GIC in realize function
 * fix handling of STM (user) with r15 in register list
 * ignore low bit of PC in M-profile exception return
 * fix linux-user get/set_tls syscalls on CPUs with TZ

----------------------------------------------------------------
Andrew Jones (3):
      target-arm: convert check_ap to ap_to_rw_prot
      target-arm: fix get_phys_addr_v6/SCTLR_AFE access check
      target-arm: get_phys_addr_lpae: more xn control

Eric Auger (1):
      hw/intc/arm_gic: Initialize the vgic in the realize function

Mikhail Ilyin (1):
      linux-user: Access correct register for get/set_tls syscalls on ARM TZ CPUs

Peter Maydell (2):
      target-arm: Fix handling of STM (user) with r15 in register list
      target-arm: Ignore low bit of PC in M-profile exception return

 hw/intc/arm_gic_kvm.c       |   7 ++
 linux-user/arm/target_cpu.h |  15 ++-
 linux-user/main.c           |   2 +-
 target-arm/helper.c         | 222 ++++++++++++++++++++++++++++++++------------
 target-arm/translate.c      |  18 ++--
 5 files changed, 197 insertions(+), 67 deletions(-)

[Qemu-devel] [PULL 1/7] target-arm: convert check_ap to ap_to_rw_prot

[Peter Maydell]

From: Andrew Jones <drjones@redhat.com>

Instead of mixing access permission checking with access permissions
to page protection flags translation, just do the translation, and
leave it to the caller to check the protection flags against the access
type. Also rename to ap_to_rw_prot to better describe the new behavior.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1426099139-14463-2-git-send-email-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/helper.c | 49 +++++++++++++++++++------------------------------
 1 file changed, 19 insertions(+), 30 deletions(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 3bc20af..d1e70a8 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -4903,34 +4903,23 @@ static inline bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx)
     }
 }
 
-/* Check section/page access permissions.
-   Returns the page protection flags, or zero if the access is not
-   permitted.  */
-static inline int check_ap(CPUARMState *env, ARMMMUIdx mmu_idx,
-                           int ap, int domain_prot,
-                           int access_type)
-{
-    int prot_ro;
+/* Translate section/page access permissions to page
+ * R/W protection flags
+ */
+static inline int ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx,
+                                int ap, int domain_prot)
+{
     bool is_user = regime_is_user(env, mmu_idx);
 
     if (domain_prot == 3) {
         return PAGE_READ | PAGE_WRITE;
     }
 
-    if (access_type == 1) {
-        prot_ro = 0;
-    } else {
-        prot_ro = PAGE_READ;
-    }
-
     switch (ap) {
     case 0:
         if (arm_feature(env, ARM_FEATURE_V7)) {
             return 0;
         }
-        if (access_type == 1) {
-            return 0;
-        }
         switch (regime_sctlr(env, mmu_idx) & (SCTLR_S | SCTLR_R)) {
         case SCTLR_S:
             return is_user ? 0 : PAGE_READ;
@@ -4943,7 +4932,7 @@ static inline int check_ap(CPUARMState *env, ARMMMUIdx mmu_idx,
         return is_user ? 0 : PAGE_READ | PAGE_WRITE;
     case 2:
         if (is_user) {
-            return prot_ro;
+            return PAGE_READ;
         } else {
             return PAGE_READ | PAGE_WRITE;
         }
@@ -4952,16 +4941,16 @@ static inline int check_ap(CPUARMState *env, ARMMMUIdx mmu_idx,
     case 4: /* Reserved.  */
         return 0;
     case 5:
-        return is_user ? 0 : prot_ro;
+        return is_user ? 0 : PAGE_READ;
     case 6:
-        return prot_ro;
+        return PAGE_READ;
     case 7:
         if (!arm_feature(env, ARM_FEATURE_V6K)) {
             return 0;
         }
-        return prot_ro;
+        return PAGE_READ;
     default:
-        abort();
+        g_assert_not_reached();
     }
 }
 
@@ -5083,12 +5072,12 @@ static int get_phys_addr_v5(CPUARMState *env, uint32_t address, int access_type,
         }
         code = 15;
     }
-    *prot = check_ap(env, mmu_idx, ap, domain_prot, access_type);
-    if (!*prot) {
+    *prot = ap_to_rw_prot(env, mmu_idx, ap, domain_prot);
+    *prot |= *prot ? PAGE_EXEC : 0;
+    if (!(*prot & (1 << access_type))) {
         /* Access permission fault.  */
         goto do_fault;
     }
-    *prot |= PAGE_EXEC;
     *phys_ptr = phys_addr;
     return 0;
 do_fault:
@@ -5204,14 +5193,14 @@ static int get_phys_addr_v6(CPUARMState *env, uint32_t address, int access_type,
             code = (code == 15) ? 6 : 3;
             goto do_fault;
         }
-        *prot = check_ap(env, mmu_idx, ap, domain_prot, access_type);
-        if (!*prot) {
+        *prot = ap_to_rw_prot(env, mmu_idx, ap, domain_prot);
+        if (*prot && !xn) {
+            *prot |= PAGE_EXEC;
+        }
+        if (!(*prot & (1 << access_type))) {
             /* Access permission fault.  */
             goto do_fault;
         }
-        if (!xn) {
-            *prot |= PAGE_EXEC;
-        }
     }
     *phys_ptr = phys_addr;
     return 0;
-- 
1.9.1

[Qemu-devel] [PULL 2/7] target-arm: fix get_phys_addr_v6/SCTLR_AFE access check

[Peter Maydell]

From: Andrew Jones <drjones@redhat.com>

Introduce simple_ap_to_rw_prot(), which has the same behavior as
ap_to_rw_prot(), but takes the 2-bit simple AP[2:1] instead of
the 3-bit AP[2:0]. Use this in get_phys_addr_v6 when SCTLR_AFE
is set, as that bit indicates we should be using the simple AP
format.

It's unlikely this path is getting used. I don't see CR_AFE
getting used by Linux, so possibly not. If it had been, then
the check would have been wrong for all but AP[2:1] = 0b11.
Anyway, this should fix it up, in case it ever does get used.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1426099139-14463-3-git-send-email-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/helper.c | 49 ++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 42 insertions(+), 7 deletions(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index d1e70a8..d996659 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -4905,6 +4905,11 @@ static inline bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx)
 
 /* Translate section/page access permissions to page
  * R/W protection flags
+ *
+ * @env:         CPUARMState
+ * @mmu_idx:     MMU index indicating required translation regime
+ * @ap:          The 3-bit access permissions (AP[2:0])
+ * @domain_prot: The 2-bit domain access permissions
  */
 static inline int ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx,
                                 int ap, int domain_prot)
@@ -4954,6 +4959,32 @@ static inline int ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx,
     }
 }
 
+/* Translate section/page access permissions to page
+ * R/W protection flags.
+ *
+ * @env:     CPUARMState
+ * @mmu_idx: MMU index indicating required translation regime
+ * @ap:      The 2-bit simple AP (AP[2:1])
+ */
+static inline int
+simple_ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx, int ap)
+{
+    bool is_user = regime_is_user(env, mmu_idx);
+
+    switch (ap) {
+    case 0:
+        return is_user ? 0 : PAGE_READ | PAGE_WRITE;
+    case 1:
+        return PAGE_READ | PAGE_WRITE;
+    case 2:
+        return is_user ? 0 : PAGE_READ;
+    case 3:
+        return PAGE_READ;
+    default:
+        g_assert_not_reached();
+    }
+}
+
 static bool get_level1_table_address(CPUARMState *env, ARMMMUIdx mmu_idx,
                                      uint32_t *table, uint32_t address)
 {
@@ -5186,14 +5217,18 @@ static int get_phys_addr_v6(CPUARMState *env, uint32_t address, int access_type,
         if (xn && access_type == 2)
             goto do_fault;
 
-        /* The simplified model uses AP[0] as an access control bit.  */
-        if ((regime_sctlr(env, mmu_idx) & SCTLR_AFE)
-                && (ap & 1) == 0) {
-            /* Access flag fault.  */
-            code = (code == 15) ? 6 : 3;
-            goto do_fault;
+        if (arm_feature(env, ARM_FEATURE_V6K) &&
+                (regime_sctlr(env, mmu_idx) & SCTLR_AFE)) {
+            /* The simplified model uses AP[0] as an access control bit.  */
+            if ((ap & 1) == 0) {
+                /* Access flag fault.  */
+                code = (code == 15) ? 6 : 3;
+                goto do_fault;
+            }
+            *prot = simple_ap_to_rw_prot(env, mmu_idx, ap >> 1);
+        } else {
+            *prot = ap_to_rw_prot(env, mmu_idx, ap, domain_prot);
         }
-        *prot = ap_to_rw_prot(env, mmu_idx, ap, domain_prot);
         if (*prot && !xn) {
             *prot |= PAGE_EXEC;
         }
-- 
1.9.1

[Qemu-devel] [PULL 3/7] target-arm: get_phys_addr_lpae: more xn control

[Peter Maydell]

From: Andrew Jones <drjones@redhat.com>

This patch makes the following changes to the determination of
whether an address is executable, when translating addresses
using LPAE.

1. No longer assumes that PL0 can't execute when it can't read.
   It can in AArch64, a difference from AArch32.
2. Use va_size == 64 to determine we're in AArch64, rather than
   arm_feature(env, ARM_FEATURE_V8), which is insufficient.
3. Add additional XN determinants
   - NS && is_secure && (SCR & SCR_SIF)
   - WXN && (prot & PAGE_WRITE)
   - AArch64: (prot_PL0 & PAGE_WRITE)
   - AArch32: UWXN && (prot_PL0 & PAGE_WRITE)
   - XN determination should also work in secure mode (untested)
   - XN may even work in EL2 (currently impossible to test)
4. Cleans up the bloated PAGE_EXEC condition - by removing it.

The helper get_S1prot is introduced. It may even work in EL2,
when support for that comes, but, as the function name implies,
it only works for stage 1 translations.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 1426099139-14463-4-git-send-email-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/helper.c | 130 ++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 100 insertions(+), 30 deletions(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index d996659..7fe3d14 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -4962,15 +4962,11 @@ static inline int ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx,
 /* Translate section/page access permissions to page
  * R/W protection flags.
  *
- * @env:     CPUARMState
- * @mmu_idx: MMU index indicating required translation regime
  * @ap:      The 2-bit simple AP (AP[2:1])
+ * @is_user: TRUE if accessing from PL0
  */
-static inline int
-simple_ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx, int ap)
+static inline int simple_ap_to_rw_prot_is_user(int ap, bool is_user)
 {
-    bool is_user = regime_is_user(env, mmu_idx);
-
     switch (ap) {
     case 0:
         return is_user ? 0 : PAGE_READ | PAGE_WRITE;
@@ -4985,6 +4981,93 @@ simple_ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx, int ap)
     }
 }
 
+static inline int
+simple_ap_to_rw_prot(CPUARMState *env, ARMMMUIdx mmu_idx, int ap)
+{
+    return simple_ap_to_rw_prot_is_user(ap, regime_is_user(env, mmu_idx));
+}
+
+/* Translate section/page access permissions to protection flags
+ *
+ * @env:     CPUARMState
+ * @mmu_idx: MMU index indicating required translation regime
+ * @is_aa64: TRUE if AArch64
+ * @ap:      The 2-bit simple AP (AP[2:1])
+ * @ns:      NS (non-secure) bit
+ * @xn:      XN (execute-never) bit
+ * @pxn:     PXN (privileged execute-never) bit
+ */
+static int get_S1prot(CPUARMState *env, ARMMMUIdx mmu_idx, bool is_aa64,
+                      int ap, int ns, int xn, int pxn)
+{
+    bool is_user = regime_is_user(env, mmu_idx);
+    int prot_rw, user_rw;
+    bool have_wxn;
+    int wxn = 0;
+
+    assert(mmu_idx != ARMMMUIdx_S2NS);
+
+    user_rw = simple_ap_to_rw_prot_is_user(ap, true);
+    if (is_user) {
+        prot_rw = user_rw;
+    } else {
+        prot_rw = simple_ap_to_rw_prot_is_user(ap, false);
+    }
+
+    if (ns && arm_is_secure(env) && (env->cp15.scr_el3 & SCR_SIF)) {
+        return prot_rw;
+    }
+
+    /* TODO have_wxn should be replaced with
+     *   ARM_FEATURE_V8 || (ARM_FEATURE_V7 && ARM_FEATURE_EL2)
+     * when ARM_FEATURE_EL2 starts getting set. For now we assume all LPAE
+     * compatible processors have EL2, which is required for [U]WXN.
+     */
+    have_wxn = arm_feature(env, ARM_FEATURE_LPAE);
+
+    if (have_wxn) {
+        wxn = regime_sctlr(env, mmu_idx) & SCTLR_WXN;
+    }
+
+    if (is_aa64) {
+        switch (regime_el(env, mmu_idx)) {
+        case 1:
+            if (!is_user) {
+                xn = pxn || (user_rw & PAGE_WRITE);
+            }
+            break;
+        case 2:
+        case 3:
+            break;
+        }
+    } else if (arm_feature(env, ARM_FEATURE_V7)) {
+        switch (regime_el(env, mmu_idx)) {
+        case 1:
+        case 3:
+            if (is_user) {
+                xn = xn || !(user_rw & PAGE_READ);
+            } else {
+                int uwxn = 0;
+                if (have_wxn) {
+                    uwxn = regime_sctlr(env, mmu_idx) & SCTLR_UWXN;
+                }
+                xn = xn || !(prot_rw & PAGE_READ) || pxn ||
+                     (uwxn && (user_rw & PAGE_WRITE));
+            }
+            break;
+        case 2:
+            break;
+        }
+    } else {
+        xn = wxn = 0;
+    }
+
+    if (xn || (wxn && (prot_rw & PAGE_WRITE))) {
+        return prot_rw;
+    }
+    return prot_rw | PAGE_EXEC;
+}
+
 static bool get_level1_table_address(CPUARMState *env, ARMMMUIdx mmu_idx,
                                      uint32_t *table, uint32_t address)
 {
@@ -5273,8 +5356,8 @@ static int get_phys_addr_lpae(CPUARMState *env, target_ulong address,
     int32_t granule_sz = 9;
     int32_t va_size = 32;
     int32_t tbi = 0;
-    bool is_user;
     TCR *tcr = regime_tcr(env, mmu_idx);
+    int ap, ns, xn, pxn;
 
     /* TODO:
      * This code assumes we're either a 64-bit EL1 or a 32-bit PL1;
@@ -5435,7 +5518,7 @@ static int get_phys_addr_lpae(CPUARMState *env, target_ulong address,
         if (extract32(tableattrs, 2, 1)) {
             attrs &= ~(1 << 4);
         }
-        /* Since we're always in the Non-secure state, NSTable is ignored. */
+        attrs |= extract32(tableattrs, 4, 1) << 3; /* NS */
         break;
     }
     /* Here descaddr is the final physical address, and attributes
@@ -5446,31 +5529,18 @@ static int get_phys_addr_lpae(CPUARMState *env, target_ulong address,
         /* Access flag */
         goto do_fault;
     }
+
+    ap = extract32(attrs, 4, 2);
+    ns = extract32(attrs, 3, 1);
+    xn = extract32(attrs, 12, 1);
+    pxn = extract32(attrs, 11, 1);
+
+    *prot = get_S1prot(env, mmu_idx, va_size == 64, ap, ns, xn, pxn);
+
     fault_type = permission_fault;
-    is_user = regime_is_user(env, mmu_idx);
-    if (is_user && !(attrs & (1 << 4))) {
-        /* Unprivileged access not enabled */
+    if (!(*prot & (1 << access_type))) {
         goto do_fault;
     }
-    *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
-    if ((arm_feature(env, ARM_FEATURE_V8) && is_user && (attrs & (1 << 12))) ||
-        (!arm_feature(env, ARM_FEATURE_V8) && (attrs & (1 << 12))) ||
-        (!is_user && (attrs & (1 << 11)))) {
-        /* XN/UXN or PXN. Since we only implement EL0/EL1 we unconditionally
-         * treat XN/UXN as UXN for v8.
-         */
-        if (access_type == 2) {
-            goto do_fault;
-        }
-        *prot &= ~PAGE_EXEC;
-    }
-    if (attrs & (1 << 5)) {
-        /* Write access forbidden */
-        if (access_type == 1) {
-            goto do_fault;
-        }
-        *prot &= ~PAGE_WRITE;
-    }
 
     *phys_ptr = descaddr;
     *page_size_ptr = page_size;
-- 
1.9.1

[Qemu-devel] [PULL 4/7] hw/intc/arm_gic: Initialize the vgic in the realize function

[Peter Maydell]

From: Eric Auger <eric.auger@linaro.org>

This patch forces vgic initialization in the vgic realize function.
It uses a new group/attribute that allows such operation:
KVM_DEV_ARM_VGIC_GRP_CTRL/KVM_DEV_ARM_VGIC_CTRL_INIT

This earlier initialization allows, for example, to setup VFIO
signaling and irqfd after vgic initialization, on a reset notifier.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Message-id: 1426094226-8515-1-git-send-email-eric.auger@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/intc/arm_gic_kvm.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/hw/intc/arm_gic_kvm.c b/hw/intc/arm_gic_kvm.c
index 1ad3eb0..0d20750 100644
--- a/hw/intc/arm_gic_kvm.c
+++ b/hw/intc/arm_gic_kvm.c
@@ -573,6 +573,13 @@ static void kvm_arm_gic_realize(DeviceState *dev, Error **errp)
         kvm_gic_access(s, KVM_DEV_ARM_VGIC_GRP_NR_IRQS, 0, 0, &numirqs, 1);
     }
 
+    /* Tell the kernel to complete VGIC initialization now */
+    if (kvm_gic_supports_attr(s, KVM_DEV_ARM_VGIC_GRP_CTRL,
+                              KVM_DEV_ARM_VGIC_CTRL_INIT)) {
+        kvm_gic_access(s, KVM_DEV_ARM_VGIC_GRP_CTRL,
+                          KVM_DEV_ARM_VGIC_CTRL_INIT, 0, 0, 1);
+    }
+
     /* Distributor */
     memory_region_init_reservation(&s->iomem, OBJECT(s),
                                    "kvm-gic_dist", 0x1000);
-- 
1.9.1

[Qemu-devel] [PULL 5/7] target-arm: Fix handling of STM (user) with r15 in register list

[Peter Maydell]

The A32 encoding of LDM distinguishes LDM (user) from LDM (exception
return) based on whether r15 is in the register list. However for
STM (user) there is no equivalent distinction. We were incorrectly
treating "r15 in list" as indicating exception return for both LDM
and STM, with the result that an STM (user) involving r15 went into
an infinite loop. Fix this; note that the value stored for r15
in this case is the current PC regardless of our current mode.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1426015125-5521-1-git-send-email-peter.maydell@linaro.org
---
 target-arm/translate.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/target-arm/translate.c b/target-arm/translate.c
index 381d896..9116529 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -8859,17 +8859,23 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
         case 0x08:
         case 0x09:
             {
-                int j, n, user, loaded_base;
+                int j, n, loaded_base;
+                bool exc_return = false;
+                bool is_load = extract32(insn, 20, 1);
+                bool user = false;
                 TCGv_i32 loaded_var;
                 /* load/store multiple words */
                 /* XXX: store correct base if write back */
-                user = 0;
                 if (insn & (1 << 22)) {
+                    /* LDM (user), LDM (exception return) and STM (user) */
                     if (IS_USER(s))
                         goto illegal_op; /* only usable in supervisor mode */
 
-                    if ((insn & (1 << 15)) == 0)
-                        user = 1;
+                    if (is_load && extract32(insn, 15, 1)) {
+                        exc_return = true;
+                    } else {
+                        user = true;
+                    }
                 }
                 rn = (insn >> 16) & 0xf;
                 addr = load_reg(s, rn);
@@ -8903,7 +8909,7 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
                 j = 0;
                 for(i=0;i<16;i++) {
                     if (insn & (1 << i)) {
-                        if (insn & (1 << 20)) {
+                        if (is_load) {
                             /* load */
                             tmp = tcg_temp_new_i32();
                             gen_aa32_ld32u(tmp, addr, get_mem_index(s));
@@ -8968,7 +8974,7 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
                 if (loaded_base) {
                     store_reg(s, rn, loaded_var);
                 }
-                if ((insn & (1 << 22)) && !user) {
+                if (exc_return) {
                     /* Restore CPSR from SPSR.  */
                     tmp = load_cpu_field(spsr);
                     gen_set_cpsr(tmp, CPSR_ERET_MASK);
-- 
1.9.1

[Qemu-devel] [PULL 6/7] target-arm: Ignore low bit of PC in M-profile exception return

[Peter Maydell]

For the ARM M-profile cores, exception return pops various registers
including the PC from the stack. The architecture defines that if the
lowest bit in the new PC value is set (ie the PC is not halfword
aligned) then behaviour is UNPREDICTABLE. In practice hardware
implementations seem to simply ignore the low bit, and some buggy
RTOSes incorrectly rely on this. QEMU's behaviour was architecturally
permitted, but bringing QEMU into line with the hardware behaviour
allows more guest code to run. We log the situation as a guest error.

This was reported as LP:1428657.

Reported-by: Anders Esbensen <anders@lyes.dk>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/helper.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 7fe3d14..10886c5 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -4334,6 +4334,16 @@ static void do_v7m_exception_exit(CPUARMState *env)
     env->regs[12] = v7m_pop(env);
     env->regs[14] = v7m_pop(env);
     env->regs[15] = v7m_pop(env);
+    if (env->regs[15] & 1) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "M profile return from interrupt with misaligned "
+                      "PC is UNPREDICTABLE\n");
+        /* Actual hardware seems to ignore the lsbit, and there are several
+         * RTOSes out there which incorrectly assume the r15 in the stack
+         * frame should be a Thumb-style "lsbit indicates ARM/Thumb" value.
+         */
+        env->regs[15] &= ~1U;
+    }
     xpsr = v7m_pop(env);
     xpsr_write(env, xpsr, 0xfffffdff);
     /* Undo stack alignment.  */
-- 
1.9.1

[Qemu-devel] [PULL 7/7] linux-user: Access correct register for get/set_tls syscalls on ARM TZ CPUs

[Peter Maydell]

From: Mikhail Ilyin <m.ilin@samsung.com>

When support was added for TrustZone to ARM CPU emulation, we failed
to correctly update the support for the linux-user implementation of
the get/set_tls syscalls. This meant that accesses to the TPIDRURO
register via the syscalls were always using the non-secure copy of
the register even if native MRC/MCR accesses were using the secure
register. This inconsistency caused most binaries to segfault on startup
if the CPU type was explicitly set to one of the TZ-enabled ones like
cortex-a15. (The default "any" CPU doesn't have TZ enabled and so is
not affected.)

Use access_secure_reg() to determine whether we should be using
the secure or the nonsecure copy of TPIDRURO when emulating these
syscalls.

Signed-off-by: Mikhail Ilyin <m.ilin@samsung.com>
Message-id: 1426505198-2411-1-git-send-email-m.ilin@samsung.com
[PMM: rewrote commit message to more clearly explain the issue
 and its consequences.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 linux-user/arm/target_cpu.h | 15 ++++++++++++++-
 linux-user/main.c           |  2 +-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/linux-user/arm/target_cpu.h b/linux-user/arm/target_cpu.h
index d8a534d..6832262 100644
--- a/linux-user/arm/target_cpu.h
+++ b/linux-user/arm/target_cpu.h
@@ -29,7 +29,20 @@ static inline void cpu_clone_regs(CPUARMState *env, target_ulong newsp)
 
 static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
 {
-    env->cp15.tpidrro_el[0] = newtls;
+    if (access_secure_reg(env)) {
+        env->cp15.tpidruro_s = newtls;
+    } else {
+        env->cp15.tpidrro_el[0] = newtls;
+    }
+}
+
+static inline target_ulong cpu_get_tls(CPUARMState *env)
+{
+    if (access_secure_reg(env)) {
+        return env->cp15.tpidruro_s;
+    } else {
+        return env->cp15.tpidrro_el[0];
+    }
 }
 
 #endif
diff --git a/linux-user/main.c b/linux-user/main.c
index 6bd23af..6e446de 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -566,7 +566,7 @@ do_kernel_trap(CPUARMState *env)
         end_exclusive();
         break;
     case 0xffff0fe0: /* __kernel_get_tls */
-        env->regs[0] = env->cp15.tpidrro_el[0];
+        env->regs[0] = cpu_get_tls(env);
         break;
     case 0xffff0f60: /* __kernel_cmpxchg64 */
         arm_kernel_cmpxchg64_helper(env);
-- 
1.9.1

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 16 March 2015 at 12:40, Peter Maydell <peter.maydell@linaro.org> wrote:
> Last batch of bugfixes before hardfreeze...
>
> -- PMM
>
> The following changes since commit f421f05754ac5aabe15f12051390204116408b00:
>
>   Merge remote-tracking branch 'remotes/kraxel/tags/pull-seabios-1.8.1-20150316-1' into staging (2015-03-16 10:58:11 +0000)
>
> are available in the git repository at:
>
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150316
>
> for you to fetch changes up to b8d43285a4db12156c40ba6fdbd8002c383fcbca:
>
>   linux-user: Access correct register for get/set_tls syscalls on ARM TZ CPUs (2015-03-16 12:30:47 +0000)

Applied, thanks.

-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

A small set of arm bugfixes for rc0.



The following changes since commit 5853e92207193e967abf5e4c25b4a551c7604725:

  Merge remote-tracking branch 'remotes/pmaydell/tags/pull-cocoa-20171107' into staging (2017-11-07 12:19:48 +0000)

are available in the git repository at:

  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20171107

for you to fetch changes up to 8a7348b5d62d7ea16807e6bea54b448a0184bb0f:

  hw/intc/arm_gicv3_its: Don't abort on table save failure (2017-11-07 13:03:52 +0000)

----------------------------------------------------------------
target-arm queue:
 * arm_gicv3_its: Don't abort on table save failure
 * arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
 * translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD
 * hw/arm: Mark the "fsl,imx31/25/6" devices with user_creatable = false
 * arm: implement cache/shareability attribute bits for PAR registers

----------------------------------------------------------------
Andrew Baumann (1):
      arm: implement cache/shareability attribute bits for PAR registers

Eric Auger (1):
      hw/intc/arm_gicv3_its: Don't abort on table save failure

Peter Maydell (1):
      translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD

Shanker Donthineni (1):
      hw/intc/arm_gicv3_its: Fix the VM termination in vm_change_state_handler()

Thomas Huth (3):
      hw/arm: Mark the "fsl,imx6" device with user_creatable = false
      hw/arm: Mark the "fsl,imx25" device with user_creatable = false
      hw/arm: Mark the "fsl,imx31" device with user_creatable = false

 hw/arm/fsl-imx25.c          |   6 +-
 hw/arm/fsl-imx31.c          |   6 +-
 hw/arm/fsl-imx6.c           |   3 +-
 hw/intc/arm_gicv3_its_kvm.c |  12 +--
 target/arm/helper.c         | 178 ++++++++++++++++++++++++++++++++++++++++----
 target/arm/translate.c      |  39 ++++++++--
 6 files changed, 214 insertions(+), 30 deletions(-)

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 7 November 2017 at 13:35, Peter Maydell <peter.maydell@linaro.org> wrote:
> A small set of arm bugfixes for rc0.
>
>
>
> The following changes since commit 5853e92207193e967abf5e4c25b4a551c7604725:
>
>   Merge remote-tracking branch 'remotes/pmaydell/tags/pull-cocoa-20171107' into staging (2017-11-07 12:19:48 +0000)
>
> are available in the git repository at:
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20171107
>
> for you to fetch changes up to 8a7348b5d62d7ea16807e6bea54b448a0184bb0f:
>
>   hw/intc/arm_gicv3_its: Don't abort on table save failure (2017-11-07 13:03:52 +0000)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * arm_gicv3_its: Don't abort on table save failure
>  * arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
>  * translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD
>  * hw/arm: Mark the "fsl,imx31/25/6" devices with user_creatable = false
>  * arm: implement cache/shareability attribute bits for PAR registers
>
> ----------------------------------------------------------------
> Andrew Baumann (1):
>       arm: implement cache/shareability attribute bits for PAR registers
>
> Eric Auger (1):
>       hw/intc/arm_gicv3_its: Don't abort on table save failure
>
> Peter Maydell (1):
>       translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD
>
> Shanker Donthineni (1):
>       hw/intc/arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
>
> Thomas Huth (3):
>       hw/arm: Mark the "fsl,imx6" device with user_creatable = false
>       hw/arm: Mark the "fsl,imx25" device with user_creatable = false
>       hw/arm: Mark the "fsl,imx31" device with user_creatable = false

Applied, thanks.

-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

ARM queue for 2.10: all M profile bugfixes...

thanks
-- PMM

The following changes since commit 25dd0e77898c3e10796d4cbeb35e8af5ba6ce975:

  Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-fetch' into staging (2017-07-31 11:27:43 +0100)

are available in the git repository at:

  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20170731

for you to fetch changes up to 89cbc3778a3d61761e2231e740269218c9a8a41d:

  hw/mps2_scc: fix incorrect properties (2017-07-31 13:11:56 +0100)

----------------------------------------------------------------
target-arm queue:
 * fix broken properties on MPS2 SCC device
 * fix MPU trace handling of write vs exec
 * fix MPU M profile bugs:
   - not handling system space or PPB region correctly
   - not resetting state
   - not migrating MPU_RNR

----------------------------------------------------------------
Peter Maydell (6):
      target/arm: Correct MPU trace handling of write vs execute
      target/arm: Don't do MPU lookups for addresses in M profile PPB region
      target/arm: Don't allow guest to make System space executable for M profile
      target/arm: Rename cp15.c6_rgnr to pmsav7.rnr
      target/arm: Move PMSAv7 reset into arm_cpu_reset() so M profile MPUs get reset
      target/arm: Migrate MPU_RNR register state for M profile cores

Philippe Mathieu-Daudé (1):
      hw/mps2_scc: fix incorrect properties

 target/arm/cpu.h      |  3 +--
 hw/intc/armv7m_nvic.c | 14 +++++-----
 hw/misc/mps2-scc.c    |  4 +--
 target/arm/cpu.c      | 14 ++++++++++
 target/arm/helper.c   | 71 ++++++++++++++++++++++++++++++++++-----------------
 target/arm/machine.c  | 30 +++++++++++++++++++++-
 6 files changed, 101 insertions(+), 35 deletions(-)

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 31 July 2017 at 13:22, Peter Maydell <peter.maydell@linaro.org> wrote:
> ARM queue for 2.10: all M profile bugfixes...
>
> thanks
> -- PMM
>
> The following changes since commit 25dd0e77898c3e10796d4cbeb35e8af5ba6ce975:
>
>   Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-fetch' into staging (2017-07-31 11:27:43 +0100)
>
> are available in the git repository at:
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20170731
>
> for you to fetch changes up to 89cbc3778a3d61761e2231e740269218c9a8a41d:
>
>   hw/mps2_scc: fix incorrect properties (2017-07-31 13:11:56 +0100)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * fix broken properties on MPS2 SCC device
>  * fix MPU trace handling of write vs exec
>  * fix MPU M profile bugs:
>    - not handling system space or PPB region correctly
>    - not resetting state
>    - not migrating MPU_RNR
>
> ----------------------------------------------------------------
> Peter Maydell (6):
>       target/arm: Correct MPU trace handling of write vs execute
>       target/arm: Don't do MPU lookups for addresses in M profile PPB region
>       target/arm: Don't allow guest to make System space executable for M profile
>       target/arm: Rename cp15.c6_rgnr to pmsav7.rnr
>       target/arm: Move PMSAv7 reset into arm_cpu_reset() so M profile MPUs get reset
>       target/arm: Migrate MPU_RNR register state for M profile cores
>
> Philippe Mathieu-Daudé (1):
>       hw/mps2_scc: fix incorrect properties

Applied, thanks.

-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

A small set of ARM patches, notably fixing bugs in breakpoint
and singlestep code, and repairing the long-broken highbank model.

The only other ARM thing I have on my radar for 2.5 is the Zynq
ADC controller, which I'll send separately if it makes it before
the freeze deadline.

thanks
-- PMM

The following changes since commit a8b4f9585a0bf5186fca793ce2c5d754cd8ec49a:

  Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-11-10' into staging (2015-11-10 09:39:24 +0000)

are available in the git repository at:


  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20151110

for you to fetch changes up to 577bf808958d06497928c639efaa473bf8c5e099:

  target-arm: Clean up DISAS_UPDATE usage in AArch32 translation code (2015-11-10 13:37:33 +0000)

----------------------------------------------------------------
target-arm queue:
 * fix bugs in gdb singlestep handling and breakpoints
 * minor code cleanup in arm_gic
 * clean up error messages in hw/arm/virt
 * fix highbank kernel booting by adding a board-setup blob

----------------------------------------------------------------
Andrew Jones (1):
      hw/arm/virt: error_report cleanups

Peter Crosthwaite (3):
      arm: boot: Add secure_board_setup flag
      arm: highbank: Defeature CPU override
      arm: highbank: Implement PSCI and dummy monitor

Sergey Fedorov (2):
      target-arm: Fix gdb singlestep handling in arm_debug_excp_handler()
      target-arm: Clean up DISAS_UPDATE usage in AArch32 translation code

Wei Huang (1):
      hw/intc/arm_gic: Remove the definition of NUM_CPU

 hw/arm/boot.c          | 10 +++++-
 hw/arm/highbank.c      | 91 +++++++++++++++++++++++++++++++++++++-------------
 hw/arm/virt.c          | 10 +++---
 hw/intc/arm_gic.c      |  8 ++---
 include/hw/arm/arm.h   |  6 ++++
 target-arm/op_helper.c |  8 ++++-
 target-arm/translate.c | 25 ++++++++------
 7 files changed, 111 insertions(+), 47 deletions(-)

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 10 November 2015 at 13:51, Peter Maydell <peter.maydell@linaro.org> wrote:
> A small set of ARM patches, notably fixing bugs in breakpoint
> and singlestep code, and repairing the long-broken highbank model.
>
> The only other ARM thing I have on my radar for 2.5 is the Zynq
> ADC controller, which I'll send separately if it makes it before
> the freeze deadline.
>
> thanks
> -- PMM
>
> The following changes since commit a8b4f9585a0bf5186fca793ce2c5d754cd8ec49a:
>
>   Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-11-10' into staging (2015-11-10 09:39:24 +0000)
>
> are available in the git repository at:
>
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20151110
>
> for you to fetch changes up to 577bf808958d06497928c639efaa473bf8c5e099:
>
>   target-arm: Clean up DISAS_UPDATE usage in AArch32 translation code (2015-11-10 13:37:33 +0000)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * fix bugs in gdb singlestep handling and breakpoints
>  * minor code cleanup in arm_gic
>  * clean up error messages in hw/arm/virt
>  * fix highbank kernel booting by adding a board-setup blob
>

Applied, thanks.

-- PMM

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Crosthwaite]

On Tue, Nov 10, 2015 at 8:38 AM, Peter Maydell <peter.maydell@linaro.org> wrote:
> On 10 November 2015 at 13:51, Peter Maydell <peter.maydell@linaro.org> wrote:
>> A small set of ARM patches, notably fixing bugs in breakpoint
>> and singlestep code, and repairing the long-broken highbank model.
>>
>> The only other ARM thing I have on my radar for 2.5 is the Zynq
>> ADC controller, which I'll send separately if it makes it before
>> the freeze deadline.
>>

It is on list I think. I don't see further review:

[PATCH for-2.5 v4 1/1] hw/misc: Add support for ADC controller in
Xilinx Zynq 7000

Regards,
Peter

>> thanks
>> -- PMM
>>
>> The following changes since commit a8b4f9585a0bf5186fca793ce2c5d754cd8ec49a:
>>
>>   Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-11-10' into staging (2015-11-10 09:39:24 +0000)
>>
>> are available in the git repository at:
>>
>>
>>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20151110
>>
>> for you to fetch changes up to 577bf808958d06497928c639efaa473bf8c5e099:
>>
>>   target-arm: Clean up DISAS_UPDATE usage in AArch32 translation code (2015-11-10 13:37:33 +0000)
>>
>> ----------------------------------------------------------------
>> target-arm queue:
>>  * fix bugs in gdb singlestep handling and breakpoints
>>  * minor code cleanup in arm_gic
>>  * clean up error messages in hw/arm/virt
>>  * fix highbank kernel booting by adding a board-setup blob
>>
>
> Applied, thanks.
>
> -- PMM
>

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 10 November 2015 at 17:12, Peter Crosthwaite
<crosthwaitepeter@gmail.com> wrote:
> On Tue, Nov 10, 2015 at 8:38 AM, Peter Maydell <peter.maydell@linaro.org> wrote:
>> On 10 November 2015 at 13:51, Peter Maydell <peter.maydell@linaro.org> wrote:
>>> A small set of ARM patches, notably fixing bugs in breakpoint
>>> and singlestep code, and repairing the long-broken highbank model.
>>>
>>> The only other ARM thing I have on my radar for 2.5 is the Zynq
>>> ADC controller, which I'll send separately if it makes it before
>>> the freeze deadline.
>>>
>
> It is on list I think. I don't see further review:
>
> [PATCH for-2.5 v4 1/1] hw/misc: Add support for ADC controller in
> Xilinx Zynq 7000

Ah yes, found it -- not sure why my search didn't turn it up earlier.

thanks
-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

Try number 2 with format string fix...

-- PMM

The following changes since commit fefa4b128de06cec6d513f00ee61e8208aed4a87:

  Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20150923.0' into staging (2015-09-23 21:39:46 +0100)

are available in the git repository at:


  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150924

for you to fetch changes up to 85b4d5dae12580ecdd446c0f71afa04a95641c91:

  MAINTAINERS: update Allwinner A10 maintainer (2015-09-24 01:29:37 +0100)

----------------------------------------------------------------
target-arm queue:
 * support VGICv3 in KVM
 * fix bug in ACPI table entries for flash devices in virt board
 * update Allwinner entry in MAINTAINERS

----------------------------------------------------------------
Beniamino Galvani (1):
      MAINTAINERS: update Allwinner A10 maintainer

Pavel Fedin (4):
      intc/gic: Extract some reusable vGIC code
      arm_kvm: Do not assume particular GIC type in kvm_arch_irqchip_create()
      hw/intc: Initial implementation of vGICv3
      hw/arm/virt: Add gic-version option to virt machine

Shannon Zhao (1):
      hw/arm/virt-acpi-build: Fix wrong size of flash in ACPI table

Shlomo Pongratz (1):
      hw/intc: Implement GIC-500 base class

 MAINTAINERS                        |   6 +-
 hw/arm/virt-acpi-build.c           |  56 ++++++++------
 hw/arm/virt.c                      | 124 ++++++++++++++++++++++++------
 hw/intc/Makefile.objs              |   2 +
 hw/intc/arm_gic_kvm.c              |  98 ++++++++----------------
 hw/intc/arm_gicv3_common.c         | 140 ++++++++++++++++++++++++++++++++++
 hw/intc/arm_gicv3_kvm.c            | 149 +++++++++++++++++++++++++++++++++++++
 hw/intc/vgic_common.h              |  35 +++++++++
 include/hw/acpi/acpi-defs.h        |   9 +++
 include/hw/arm/virt-acpi-build.h   |   1 +
 include/hw/arm/virt.h              |   4 +-
 include/hw/intc/arm_gicv3_common.h |  68 +++++++++++++++++
 include/sysemu/kvm.h               |  26 +++++++
 kvm-all.c                          |  34 +++++++++
 target-arm/kvm.c                   |  19 +++--
 target-arm/kvm_arm.h               |  19 +++++
 target-arm/machine.c               |  18 +++++
 17 files changed, 686 insertions(+), 122 deletions(-)
 create mode 100644 hw/intc/arm_gicv3_common.c
 create mode 100644 hw/intc/arm_gicv3_kvm.c
 create mode 100644 hw/intc/vgic_common.h
 create mode 100644 include/hw/intc/arm_gicv3_common.h

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Pavel Fedin]

 Hello!

 Thank you very much for your support and cooperation. I am back from my vacation and continuing my
work on live migration. Actually i already have working code, but need to settle down kernel API
first.

Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 23 September 2015 at 17:31, Peter Maydell <peter.maydell@linaro.org> wrote:
> Try number 2 with format string fix...
>
> -- PMM
>
> The following changes since commit fefa4b128de06cec6d513f00ee61e8208aed4a87:
>
>   Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20150923.0' into staging (2015-09-23 21:39:46 +0100)
>
> are available in the git repository at:
>
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150924
>
> for you to fetch changes up to 85b4d5dae12580ecdd446c0f71afa04a95641c91:
>
>   MAINTAINERS: update Allwinner A10 maintainer (2015-09-24 01:29:37 +0100)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * support VGICv3 in KVM
>  * fix bug in ACPI table entries for flash devices in virt board
>  * update Allwinner entry in MAINTAINERS
>
> ----------------------------------------------------------------

Applied, thanks.

-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

A small pullreq, but I don't have anything else pending and I wanted
to get the GICv3 patches in this week.

-- PMM


The following changes since commit 684bb5770ec5d72a66620f64fc5d9672bf8d3509:

  Merge remote-tracking branch 'remotes/dgibson/tags/spapr-next-20150923' into staging (2015-09-23 16:52:54 +0100)

are available in the git repository at:


  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150923-1

for you to fetch changes up to 5d23e959fc6c8604d3c19b39b71c5a1effb2c347:

  MAINTAINERS: update Allwinner A10 maintainer (2015-09-23 22:37:40 +0100)

----------------------------------------------------------------
target-arm queue:
 * support VGICv3 in KVM
 * fix bug in ACPI table entries for flash devices in virt board
 * update Allwinner entry in MAINTAINERS

----------------------------------------------------------------
Beniamino Galvani (1):
      MAINTAINERS: update Allwinner A10 maintainer

Pavel Fedin (4):
      intc/gic: Extract some reusable vGIC code
      arm_kvm: Do not assume particular GIC type in kvm_arch_irqchip_create()
      hw/intc: Initial implementation of vGICv3
      hw/arm/virt: Add gic-version option to virt machine

Shannon Zhao (1):
      hw/arm/virt-acpi-build: Fix wrong size of flash in ACPI table

Shlomo Pongratz (1):
      hw/intc: Implement GIC-500 base class

 MAINTAINERS                        |   6 +-
 hw/arm/virt-acpi-build.c           |  56 ++++++++------
 hw/arm/virt.c                      | 124 ++++++++++++++++++++++++------
 hw/intc/Makefile.objs              |   2 +
 hw/intc/arm_gic_kvm.c              |  98 ++++++++----------------
 hw/intc/arm_gicv3_common.c         | 140 ++++++++++++++++++++++++++++++++++
 hw/intc/arm_gicv3_kvm.c            | 149 +++++++++++++++++++++++++++++++++++++
 hw/intc/vgic_common.h              |  35 +++++++++
 include/hw/acpi/acpi-defs.h        |   9 +++
 include/hw/arm/virt-acpi-build.h   |   1 +
 include/hw/arm/virt.h              |   4 +-
 include/hw/intc/arm_gicv3_common.h |  68 +++++++++++++++++
 include/sysemu/kvm.h               |  26 +++++++
 kvm-all.c                          |  34 +++++++++
 target-arm/kvm.c                   |  19 +++--
 target-arm/kvm_arm.h               |  19 +++++
 target-arm/machine.c               |  18 +++++
 17 files changed, 686 insertions(+), 122 deletions(-)
 create mode 100644 hw/intc/arm_gicv3_common.c
 create mode 100644 hw/intc/arm_gicv3_kvm.c
 create mode 100644 hw/intc/vgic_common.h
 create mode 100644 include/hw/intc/arm_gicv3_common.h

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 23 September 2015 at 14:43, Peter Maydell <peter.maydell@linaro.org> wrote:
> A small pullreq, but I don't have anything else pending and I wanted
> to get the GICv3 patches in this week.
>
> -- PMM
>
>
> The following changes since commit 684bb5770ec5d72a66620f64fc5d9672bf8d3509:
>
>   Merge remote-tracking branch 'remotes/dgibson/tags/spapr-next-20150923' into staging (2015-09-23 16:52:54 +0100)
>
> are available in the git repository at:
>
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150923-1
>
> for you to fetch changes up to 5d23e959fc6c8604d3c19b39b71c5a1effb2c347:
>
>   MAINTAINERS: update Allwinner A10 maintainer (2015-09-23 22:37:40 +0100)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * support VGICv3 in KVM
>  * fix bug in ACPI table entries for flash devices in virt board
>  * update Allwinner entry in MAINTAINERS
>
> ----------------------------------------------------------------

Minor fixup required to get it to compile on 32-bit:

--- a/kvm-all.c
+++ b/kvm-all.c
@@ -2036,7 +2036,7 @@ void kvm_device_access(int fd, int group, uint64_t attr,
                            &kvmattr);
     if (err < 0) {
         error_report("KVM_%s_DEVICE_ATTR failed: %s\n"
-                     "Group %d attr 0x%016zX", write ? "SET" : "GET",
+                     "Group %d attr 0x%016" PRIx64 , write ? "SET" : "GET",
                      strerror(-err), group, attr);
         abort();
     }


-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

target-arm queue before hardfreeze: these are pretty much all
bugfixes.

-- PMM

The following changes since commit f50a1640fb82708a5d528dee1ace42a224b95b15:

  Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging (2015-07-05 20:35:47 +0100)

are available in the git repository at:


  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150706

for you to fetch changes up to 257621a9566054472d1d55a819880d0f9da02bda:

  arm_mptimer: Respect IT bit state (2015-07-06 10:26:35 +0100)

----------------------------------------------------------------
target-arm queue:
 * TLBI ALLEI1IS should operate on all CPUs, not just this one
 * Fix interval interrupt of cadence ttc in decrement mode
 * Implement YIELD insn to yield in ARM and Thumb translators
 * ARM GIC: reset all registers
 * arm_mptimer: fix timer shutdown and mode change
 * arm_mptimer: respect IT bit state

----------------------------------------------------------------
Dmitry Osipenko (2):
      arm_mptimer: Fix timer shutdown and mode change
      arm_mptimer: Respect IT bit state

Johannes Schlatow (1):
      Fix interval interrupt of cadence ttc when timer is in decrement mode

Peter Maydell (3):
      target-arm: Split DISAS_YIELD from DISAS_WFE
      target-arm: Implement YIELD insn to yield in ARM and Thumb translators
      hw/intc/arm_gic_common.c: Reset all registers

Sergey Fedorov (1):
      target-arm: fix write helper for TLBI ALLE1IS

 hw/intc/arm_gic_common.c   | 21 ++++++++++++++++++---
 hw/timer/arm_mptimer.c     | 13 ++++++++++---
 hw/timer/cadence_ttc.c     |  9 ++++-----
 target-arm/helper.c        |  2 +-
 target-arm/helper.h        |  1 +
 target-arm/op_helper.c     | 18 +++++++++++++++---
 target-arm/translate-a64.c |  6 ++++++
 target-arm/translate.c     |  7 +++++++
 target-arm/translate.h     |  1 +
 9 files changed, 63 insertions(+), 15 deletions(-)

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 6 July 2015 at 10:59, Peter Maydell <peter.maydell@linaro.org> wrote:
> target-arm queue before hardfreeze: these are pretty much all
> bugfixes.
>
> -- PMM
>
> The following changes since commit f50a1640fb82708a5d528dee1ace42a224b95b15:
>
>   Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging (2015-07-05 20:35:47 +0100)
>
> are available in the git repository at:
>
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150706
>
> for you to fetch changes up to 257621a9566054472d1d55a819880d0f9da02bda:
>
>   arm_mptimer: Respect IT bit state (2015-07-06 10:26:35 +0100)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * TLBI ALLEI1IS should operate on all CPUs, not just this one
>  * Fix interval interrupt of cadence ttc in decrement mode
>  * Implement YIELD insn to yield in ARM and Thumb translators
>  * ARM GIC: reset all registers
>  * arm_mptimer: fix timer shutdown and mode change
>  * arm_mptimer: respect IT bit state

Applied, thanks.

-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

target-arm queue: a few new features, but all minor stuff.

thanks
-- PMM


The following changes since commit ccb0c7e122db72d3a5da798c6414d4912bba828f:

  Merge remote-tracking branch 'remotes/lalrae/tags/mips-20150626' into staging (2015-06-26 11:32:58 +0100)

are available in the git repository at:


  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150626

for you to fetch changes up to 4e2c0b2a4ab810c8989e181a010e75aeaa1c55f3:

  hw/arm/virt: Make block devices default to virtio (2015-06-26 14:22:37 +0100)

----------------------------------------------------------------
target-arm queue:
 * Change the virt board's default interface type for block devices to virtio
 * Improve some error messages that will now be triggered by some incorrect
   but previously worked-by-accident command lines
 * Print ELR if we're doing debug logging of AArch64 exception entry
 * Handle the "completely empty semihosting commandline" correctly for
   softmmu (we already did for linux-user)
 * Add GICv2m description to ACPI tables for virt board
 * Fix some incorrect table revision entries in virt board ACPI tables

----------------------------------------------------------------
Liviu Ionescu (1):
      target-arm: default empty semihosting cmdline

Peter Maydell (3):
      qdev-properties-system: Change set_pointer's parse callback to use Error
      qdev-properties-system: Improve error message for drive assignment conflict
      hw/arm/virt: Make block devices default to virtio

Shannon Zhao (2):
      hw/arm/virt-acpi-build: Fix table revision and some comments
      hw/arm/virt-acpi-build: Add GICv2m description in ACPI MADT table

Soren Brinkmann (1):
      target-arm: A64: Print ELR when taking exceptions

 hw/arm/virt-acpi-build.c         | 22 ++++++++++++++++-----
 hw/arm/virt.c                    |  2 ++
 hw/core/qdev-properties-system.c | 42 +++++++++++++++++++++++++++-------------
 include/hw/acpi/acpi-defs.h      | 12 ++++++++++++
 target-arm/arm-semi.c            | 11 +++++++++--
 target-arm/helper-a64.c          |  2 ++
 6 files changed, 71 insertions(+), 20 deletions(-)

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 26 June 2015 at 14:31, Peter Maydell <peter.maydell@linaro.org> wrote:
> target-arm queue: a few new features, but all minor stuff.
>
> thanks
> -- PMM
>
>
> The following changes since commit ccb0c7e122db72d3a5da798c6414d4912bba828f:
>
>   Merge remote-tracking branch 'remotes/lalrae/tags/mips-20150626' into staging (2015-06-26 11:32:58 +0100)
>
> are available in the git repository at:
>
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20150626
>
> for you to fetch changes up to 4e2c0b2a4ab810c8989e181a010e75aeaa1c55f3:
>
>   hw/arm/virt: Make block devices default to virtio (2015-06-26 14:22:37 +0100)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * Change the virt board's default interface type for block devices to virtio
>  * Improve some error messages that will now be triggered by some incorrect
>    but previously worked-by-accident command lines
>  * Print ELR if we're doing debug logging of AArch64 exception entry
>  * Handle the "completely empty semihosting commandline" correctly for
>    softmmu (we already did for linux-user)
>  * Add GICv2m description to ACPI tables for virt board
>  * Fix some incorrect table revision entries in virt board ACPI tables
>
> ----------------------------------------------------------------

Applied, thanks.

-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

Last handful of patches before hardfreeze; these are just
refactoring/cleanup, but I'd like to get them in to avoid
clashes and merge conflicts with other series like TZ.

thanks
-- PMM

The following changes since commit 949ca9e479c381a63ddb257adca1a6f0c44d898e:

  Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging (2014-11-03 22:51:08 +0000)

are available in the git repository at:


  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20141104

for you to fetch changes up to 9fae24f55496ea178e9e8e351f82a02f34ddaf4d:

  target-arm: Correct condition for taking VIRQ and VFIQ (2014-11-04 12:05:23 +0000)

----------------------------------------------------------------
target-arm queue:
 * avoid passing CPU env pointer around in A32/T32 decoders
 * split M profile exception masking out from A/R profile

----------------------------------------------------------------
Peter Maydell (7):
      target-arm/translate.c: Use arm_dc_feature() in ENABLE_ARCH_ macros
      target-arm/translate.c: Use arm_dc_feature() rather than arm_feature()
      target-arm/translate.c: Don't use IS_M()
      target-arm/translate.c: Don't pass CPUARMState around in the decoder
      target-arm/translate.c: Don't pass CPUARMState * to disas_arm_insn()
      target-arm: Separate out M profile cpu_exec_interrupt handling
      target-arm: Correct condition for taking VIRQ and VFIQ

 target-arm/cpu.c       |  49 +++++++--
 target-arm/cpu.h       |  20 +---
 target-arm/translate.c | 280 +++++++++++++++++++++++++++----------------------
 3 files changed, 197 insertions(+), 152 deletions(-)

Re: [Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

On 4 November 2014 12:30, Peter Maydell <peter.maydell@linaro.org> wrote:
> Last handful of patches before hardfreeze; these are just
> refactoring/cleanup, but I'd like to get them in to avoid
> clashes and merge conflicts with other series like TZ.
>
> thanks
> -- PMM
>
> The following changes since commit 949ca9e479c381a63ddb257adca1a6f0c44d898e:
>
>   Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging (2014-11-03 22:51:08 +0000)
>
> are available in the git repository at:
>
>
>   git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20141104
>
> for you to fetch changes up to 9fae24f55496ea178e9e8e351f82a02f34ddaf4d:
>
>   target-arm: Correct condition for taking VIRQ and VFIQ (2014-11-04 12:05:23 +0000)
>
> ----------------------------------------------------------------
> target-arm queue:
>  * avoid passing CPU env pointer around in A32/T32 decoders
>  * split M profile exception masking out from A/R profile
>
> ----------------------------------------------------------------

Applied, thanks.

-- PMM

[Qemu-devel] [PULL 0/7] target-arm queue

[Peter Maydell]

Hi; these are the pending target-arm patches I'd like to get in for 1.0;
a couple of minor ones plus the A15 insn work. Please pull.

PS: I'm not sure who the best person to cc on target-arm pull requests
is; any suggestions?

thanks
-- PMM

The following changes since commit cfce6d8934243871c4dc6d0c5248b0b27a1b8d80:

  i8259: Move to hw library (2011-10-16 11:11:56 +0000)

are available in the git repository at:
  git://git.linaro.org/people/pmaydell/qemu-arm.git target-arm.for-upstream

Christophe LYON (1):
      rsqrte_f32: No need to copy sign bit.

Dmitry Koshelev (1):
      target-arm/machine.c: Restore VFP registers correctly

Peter Maydell (5):
      target-arm: v6 media multiply space: UNDEF on unassigned encodings
      target-arm: Rename ARM_FEATURE_DIV to _THUMB_DIV
      target-arm: Add ARM UDIV/SDIV support
      softfloat: Implement fused multiply-add
      target-arm: Implement VFPv4 fused multiply-accumulate insns

 fpu/softfloat-specialize.h |  178 ++++++++++++++++++
 fpu/softfloat.c            |  427 ++++++++++++++++++++++++++++++++++++++++++++
 fpu/softfloat.h            |   14 ++
 target-arm/cpu.h           |    4 +-
 target-arm/helper.c        |   24 ++-
 target-arm/helper.h        |    3 +
 target-arm/machine.c       |    2 +-
 target-arm/translate.c     |  118 ++++++++++++-
 8 files changed, 759 insertions(+), 11 deletions(-)