[PULL 0/9] Misc patches (s390x, build env, clean-ups)

[PULL 0/9] Misc patches (s390x, build env, clean-ups)

[Thomas Huth]

The following changes since commit 73d29ea2417b58ca55fba1aa468ba38e3607b583:

  Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging (2025-04-27 12:47:23 -0400)

are available in the Git repository at:

  https://gitlab.com/thuth/qemu.git tags/pull-request-2025-04-30

for you to fetch changes up to dce324fa06b358ccb01bf35611b6fc53b1f56b96:

  docs/devel/build-environment: enhance MSYS2 instructions (2025-04-30 20:44:20 +0200)

----------------------------------------------------------------
* Extend s390x diagnose call 308 subcode 10 to return more information
* Make valgrind support configurable
* Drop support for Python 3.8
* Some other misc cosmetic changes

----------------------------------------------------------------
Daniel P. Berrangé (1):
      meson/configure: add 'valgrind' option & --{en, dis}able-valgrind flag

Gautam Gala (3):
      target/s390x: Introduce constant when checking if PV header couldn't be decrypted
      target/s390x: Introduce function when exiting PV
      target/s390x: Return UVC cmd code, RC and RRC value when DIAG 308 Subcode 10 fails to enter secure mode

Philippe Mathieu-Daudé (1):
      hw/rtc/mc146818rtc: Drop pre-v3 migration stream support

Pierrick Bouvier (1):
      docs/devel/build-environment: enhance MSYS2 instructions

Thomas Huth (3):
      Drop support for Python 3.8
      tests/functional/test_ppc64_pseries: Skip test_ppc64_linux_smt_boot if necessary
      meson.build: Put the D-Bus summary into the UI section

 docs/about/build-platforms.rst         |  2 +-
 docs/devel/build-environment.rst       |  4 +--
 configure                              | 14 ++++----
 meson.build                            | 15 ++++++--
 hw/s390x/ipl.h                         |  6 ++--
 target/s390x/kvm/pv.h                  | 26 ++++++++++----
 hw/rtc/mc146818rtc.c                   | 18 +++++-----
 hw/s390x/ipl.c                         | 11 +++---
 hw/s390x/s390-virtio-ccw.c             | 14 ++++----
 target/s390x/kvm/pv.c                  | 66 ++++++++++++++++++++++------------
 meson_options.txt                      |  2 ++
 python/Makefile                        |  8 ++---
 python/setup.cfg                       |  7 ++--
 python/tests/minreqs.txt               |  2 +-
 scripts/meson-buildoptions.sh          |  3 ++
 scripts/qapi/mypy.ini                  |  2 +-
 tests/docker/dockerfiles/python.docker |  1 -
 tests/functional/test_ppc64_pseries.py |  1 +
 18 files changed, 126 insertions(+), 76 deletions(-)

[PULL 1/9] target/s390x: Introduce constant when checking if PV header couldn't be decrypted

[Thomas Huth]

From: Gautam Gala <ggala@linux.ibm.com>

Introduce a named constant when checking the Set Secure Configuration parameters
UV call return code for the case where no valid host key was found and therefore
the PV header couldn't be decrypted (0x108).

Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Gautam Gala <ggala@linux.ibm.com>
Message-ID: <20250423080915.1048123-2-ggala@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 target/s390x/kvm/pv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/s390x/kvm/pv.c b/target/s390x/kvm/pv.c
index fe0a72c416e..1947a3d6692 100644
--- a/target/s390x/kvm/pv.c
+++ b/target/s390x/kvm/pv.c
@@ -147,6 +147,7 @@ bool s390_pv_vm_try_disable_async(S390CcwMachineState *ms)
     return true;
 }
 
+#define UV_RC_SSC_INVAL_HOSTKEY    0x0108
 int s390_pv_set_sec_parms(uint64_t origin, uint64_t length, Error **errp)
 {
     int ret, pvrc;
@@ -158,7 +159,7 @@ int s390_pv_set_sec_parms(uint64_t origin, uint64_t length, Error **errp)
     ret = s390_pv_cmd_pvrc(KVM_PV_SET_SEC_PARMS, &args, &pvrc);
     if (ret) {
         error_setg(errp, "Failed to set secure execution parameters");
-        if (pvrc == 0x108) {
+        if (pvrc == UV_RC_SSC_INVAL_HOSTKEY) {
             error_append_hint(errp, "Please check whether the image is "
                                     "correctly encrypted for this host\n");
         }
-- 
2.49.0

[PULL 2/9] target/s390x: Introduce function when exiting PV

[Thomas Huth]

From: Gautam Gala <ggala@linux.ibm.com>

Replace an existing macro (s390_pv_cmd_exit) that looks like
a function with an actual function. The function will be used
when exiting PV instead of the macro.

Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Gautam Gala <ggala@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250423080915.1048123-3-ggala@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 target/s390x/kvm/pv.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/target/s390x/kvm/pv.c b/target/s390x/kvm/pv.c
index 1947a3d6692..30b64f7f22e 100644
--- a/target/s390x/kvm/pv.c
+++ b/target/s390x/kvm/pv.c
@@ -59,14 +59,12 @@ static int __s390_pv_cmd(uint32_t cmd, const char *cmdname, void *data,
  */
 #define s390_pv_cmd(cmd, data) __s390_pv_cmd(cmd, #cmd, data, NULL)
 #define s390_pv_cmd_pvrc(cmd, data, pvrc) __s390_pv_cmd(cmd, #cmd, data, pvrc)
-#define s390_pv_cmd_exit(cmd, data)    \
-{                                      \
-    int rc;                            \
-                                       \
-    rc = __s390_pv_cmd(cmd, #cmd, data, NULL); \
-    if (rc) {                          \
-        exit(1);                       \
-    }                                  \
+
+static void s390_pv_cmd_exit(uint32_t cmd, void *data)
+{
+    if (s390_pv_cmd(cmd, data)) {
+        exit(1);
+    }
 }
 
 int s390_pv_query_info(void)
-- 
2.49.0

[PULL 3/9] target/s390x: Return UVC cmd code, RC and RRC value when DIAG 308 Subcode 10 fails to enter secure mode

[Thomas Huth]

From: Gautam Gala <ggala@linux.ibm.com>

Extend DIAG308 subcode 10 to return the UVC RC, RRC and command code
in bit positions 32-47, 16-31, and 0-15 of register R1 + 1 if the
function does not complete successfully (in addition to the
previously returned diag response code in bit position 47-63).

Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Gautam Gala <ggala@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Message-ID: <20250423080915.1048123-4-ggala@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 hw/s390x/ipl.h             |  6 +++--
 target/s390x/kvm/pv.h      | 26 +++++++++++++------
 hw/s390x/ipl.c             | 11 ++++----
 hw/s390x/s390-virtio-ccw.c | 14 ++++++-----
 target/s390x/kvm/pv.c      | 51 +++++++++++++++++++++++++++-----------
 5 files changed, 73 insertions(+), 35 deletions(-)

diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h
index cb55101f062..505cded490c 100644
--- a/hw/s390x/ipl.h
+++ b/hw/s390x/ipl.h
@@ -20,6 +20,7 @@
 #include "hw/qdev-core.h"
 #include "hw/s390x/ipl/qipl.h"
 #include "qom/object.h"
+#include "target/s390x/kvm/pv.h"
 
 #define DIAG308_FLAGS_LP_VALID 0x80
 #define MAX_BOOT_DEVS 8 /* Max number of devices that may have a bootindex */
@@ -28,8 +29,9 @@ void s390_ipl_convert_loadparm(char *ascii_lp, uint8_t *ebcdic_lp);
 void s390_ipl_fmt_loadparm(uint8_t *loadparm, char *str, Error **errp);
 void s390_rebuild_iplb(uint16_t index, IplParameterBlock *iplb);
 void s390_ipl_update_diag308(IplParameterBlock *iplb);
-int s390_ipl_prepare_pv_header(Error **errp);
-int s390_ipl_pv_unpack(void);
+int s390_ipl_prepare_pv_header(struct S390PVResponse *pv_resp,
+                               Error **errp);
+int s390_ipl_pv_unpack(struct S390PVResponse *pv_resp);
 void s390_ipl_prepare_cpu(S390CPU *cpu);
 IplParameterBlock *s390_ipl_get_iplb(void);
 IplParameterBlock *s390_ipl_get_iplb_pv(void);
diff --git a/target/s390x/kvm/pv.h b/target/s390x/kvm/pv.h
index 5e9c8bd3510..94e885e9335 100644
--- a/target/s390x/kvm/pv.h
+++ b/target/s390x/kvm/pv.h
@@ -16,6 +16,12 @@
 #include "system/kvm.h"
 #include "hw/s390x/s390-virtio-ccw.h"
 
+struct S390PVResponse {
+    uint16_t cmd;
+    uint16_t rrc;
+    uint16_t rc;
+};
+
 #ifdef CONFIG_KVM
 #include "cpu.h"
 
@@ -42,12 +48,15 @@ int s390_pv_query_info(void);
 int s390_pv_vm_enable(void);
 void s390_pv_vm_disable(void);
 bool s390_pv_vm_try_disable_async(S390CcwMachineState *ms);
-int s390_pv_set_sec_parms(uint64_t origin, uint64_t length, Error **errp);
-int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak);
+int s390_pv_set_sec_parms(uint64_t origin, uint64_t length,
+                          struct S390PVResponse *pv_resp, Error **errp);
+int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak,
+                   struct S390PVResponse *pv_resp);
 void s390_pv_prep_reset(void);
-int s390_pv_verify(void);
+int s390_pv_verify(struct S390PVResponse *pv_resp);
 void s390_pv_unshare(void);
-void s390_pv_inject_reset_error(CPUState *cs);
+void s390_pv_inject_reset_error(CPUState *cs,
+                                struct S390PVResponse pv_resp);
 uint64_t kvm_s390_pv_dmp_get_size_cpu(void);
 uint64_t kvm_s390_pv_dmp_get_size_mem_state(void);
 uint64_t kvm_s390_pv_dmp_get_size_completion_data(void);
@@ -63,12 +72,15 @@ static inline int s390_pv_vm_enable(void) { return 0; }
 static inline void s390_pv_vm_disable(void) {}
 static inline bool s390_pv_vm_try_disable_async(S390CcwMachineState *ms) { return false; }
 static inline int s390_pv_set_sec_parms(uint64_t origin, uint64_t length,
+                                        struct S390PVResponse *pv_resp,
                                         Error **errp) { return 0; }
-static inline int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak) { return 0; }
+static inline int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak,
+                                 struct S390PVResponse *pv_resp) { return 0; }
 static inline void s390_pv_prep_reset(void) {}
-static inline int s390_pv_verify(void) { return 0; }
+static inline int s390_pv_verify(struct S390PVResponse *pv_resp) { return 0; }
 static inline void s390_pv_unshare(void) {}
-static inline void s390_pv_inject_reset_error(CPUState *cs) {};
+static inline void s390_pv_inject_reset_error(CPUState *cs,
+                                              struct S390PVResponse pv_resp) {};
 static inline uint64_t kvm_s390_pv_dmp_get_size_cpu(void) { return 0; }
 static inline uint64_t kvm_s390_pv_dmp_get_size_mem_state(void) { return 0; }
 static inline uint64_t kvm_s390_pv_dmp_get_size_completion_data(void) { return 0; }
diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
index 716a6b78694..2f082396c73 100644
--- a/hw/s390x/ipl.c
+++ b/hw/s390x/ipl.c
@@ -26,7 +26,6 @@
 #include "hw/s390x/vfio-ccw.h"
 #include "hw/s390x/css.h"
 #include "hw/s390x/ebcdic.h"
-#include "target/s390x/kvm/pv.h"
 #include "hw/scsi/scsi.h"
 #include "hw/virtio/virtio-net.h"
 #include "ipl.h"
@@ -676,7 +675,7 @@ static void s390_ipl_prepare_qipl(S390CPU *cpu)
     cpu_physical_memory_unmap(addr, len, 1, len);
 }
 
-int s390_ipl_prepare_pv_header(Error **errp)
+int s390_ipl_prepare_pv_header(struct S390PVResponse *pv_resp, Error **errp)
 {
     IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
     IPLBlockPV *ipib_pv = &ipib->pv;
@@ -685,12 +684,13 @@ int s390_ipl_prepare_pv_header(Error **errp)
 
     cpu_physical_memory_read(ipib_pv->pv_header_addr, hdr,
                              ipib_pv->pv_header_len);
-    rc = s390_pv_set_sec_parms((uintptr_t)hdr, ipib_pv->pv_header_len, errp);
+    rc = s390_pv_set_sec_parms((uintptr_t)hdr, ipib_pv->pv_header_len,
+                               pv_resp, errp);
     g_free(hdr);
     return rc;
 }
 
-int s390_ipl_pv_unpack(void)
+int s390_ipl_pv_unpack(struct S390PVResponse *pv_resp)
 {
     IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
     IPLBlockPV *ipib_pv = &ipib->pv;
@@ -699,7 +699,8 @@ int s390_ipl_pv_unpack(void)
     for (i = 0; i < ipib_pv->num_comp; i++) {
         rc = s390_pv_unpack(ipib_pv->components[i].addr,
                             TARGET_PAGE_ALIGN(ipib_pv->components[i].size),
-                            ipib_pv->components[i].tweak_pref);
+                            ipib_pv->components[i].tweak_pref,
+                            pv_resp);
         if (rc) {
             break;
         }
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 94edd42dd25..d5658afed96 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -365,7 +365,8 @@ static void s390_machine_unprotect(S390CcwMachineState *ms)
     ram_block_discard_disable(false);
 }
 
-static int s390_machine_protect(S390CcwMachineState *ms)
+static int s390_machine_protect(S390CcwMachineState *ms,
+                                struct S390PVResponse *pv_resp)
 {
     Error *local_err = NULL;
     int rc;
@@ -408,19 +409,19 @@ static int s390_machine_protect(S390CcwMachineState *ms)
     }
 
     /* Set SE header and unpack */
-    rc = s390_ipl_prepare_pv_header(&local_err);
+    rc = s390_ipl_prepare_pv_header(pv_resp, &local_err);
     if (rc) {
         goto out_err;
     }
 
     /* Decrypt image */
-    rc = s390_ipl_pv_unpack();
+    rc = s390_ipl_pv_unpack(pv_resp);
     if (rc) {
         goto out_err;
     }
 
     /* Verify integrity */
-    rc = s390_pv_verify();
+    rc = s390_pv_verify(pv_resp);
     if (rc) {
         goto out_err;
     }
@@ -452,6 +453,7 @@ static void s390_pv_prepare_reset(S390CcwMachineState *ms)
 static void s390_machine_reset(MachineState *machine, ResetType type)
 {
     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
+    struct S390PVResponse pv_resp;
     enum s390_reset reset_type;
     CPUState *cs, *t;
     S390CPU *cpu;
@@ -540,8 +542,8 @@ static void s390_machine_reset(MachineState *machine, ResetType type)
         }
         run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL);
 
-        if (s390_machine_protect(ms)) {
-            s390_pv_inject_reset_error(cs);
+        if (s390_machine_protect(ms, &pv_resp)) {
+            s390_pv_inject_reset_error(cs, pv_resp);
             /*
              * Continue after the diag308 so the guest knows something
              * went wrong.
diff --git a/target/s390x/kvm/pv.c b/target/s390x/kvm/pv.c
index 30b64f7f22e..2bc916a5455 100644
--- a/target/s390x/kvm/pv.c
+++ b/target/s390x/kvm/pv.c
@@ -30,7 +30,7 @@ static struct kvm_s390_pv_info_vm info_vm;
 static struct kvm_s390_pv_info_dump info_dump;
 
 static int __s390_pv_cmd(uint32_t cmd, const char *cmdname, void *data,
-                         int *pvrc)
+                         struct S390PVResponse *pv_resp)
 {
     struct kvm_pv_cmd pv_cmd = {
         .cmd = cmd,
@@ -47,8 +47,10 @@ static int __s390_pv_cmd(uint32_t cmd, const char *cmdname, void *data,
                      "IOCTL rc: %d", cmd, cmdname, pv_cmd.rc, pv_cmd.rrc,
                      rc);
     }
-    if (pvrc) {
-        *pvrc = pv_cmd.rc;
+    if (pv_resp) {
+        pv_resp->cmd = cmd;
+        pv_resp->rc = pv_cmd.rc;
+        pv_resp->rrc = pv_cmd.rrc;
     }
     return rc;
 }
@@ -57,8 +59,9 @@ static int __s390_pv_cmd(uint32_t cmd, const char *cmdname, void *data,
  * This macro lets us pass the command as a string to the function so
  * we can print it on an error.
  */
-#define s390_pv_cmd(cmd, data) __s390_pv_cmd(cmd, #cmd, data, NULL)
-#define s390_pv_cmd_pvrc(cmd, data, pvrc) __s390_pv_cmd(cmd, #cmd, data, pvrc)
+#define s390_pv_cmd(cmd, data)  __s390_pv_cmd(cmd, #cmd, data, NULL)
+#define s390_pv_cmd_pv_resp(cmd, data, pv_resp) \
+                                __s390_pv_cmd(cmd, #cmd, data, pv_resp)
 
 static void s390_pv_cmd_exit(uint32_t cmd, void *data)
 {
@@ -146,18 +149,19 @@ bool s390_pv_vm_try_disable_async(S390CcwMachineState *ms)
 }
 
 #define UV_RC_SSC_INVAL_HOSTKEY    0x0108
-int s390_pv_set_sec_parms(uint64_t origin, uint64_t length, Error **errp)
+int s390_pv_set_sec_parms(uint64_t origin, uint64_t length,
+                          struct S390PVResponse *pv_resp, Error **errp)
 {
-    int ret, pvrc;
+    int ret;
     struct kvm_s390_pv_sec_parm args = {
         .origin = origin,
         .length = length,
     };
 
-    ret = s390_pv_cmd_pvrc(KVM_PV_SET_SEC_PARMS, &args, &pvrc);
+    ret = s390_pv_cmd_pv_resp(KVM_PV_SET_SEC_PARMS, &args, pv_resp);
     if (ret) {
         error_setg(errp, "Failed to set secure execution parameters");
-        if (pvrc == UV_RC_SSC_INVAL_HOSTKEY) {
+        if (pv_resp->rc == UV_RC_SSC_INVAL_HOSTKEY) {
             error_append_hint(errp, "Please check whether the image is "
                                     "correctly encrypted for this host\n");
         }
@@ -169,7 +173,8 @@ int s390_pv_set_sec_parms(uint64_t origin, uint64_t length, Error **errp)
 /*
  * Called for each component in the SE type IPL parameter block 0.
  */
-int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak)
+int s390_pv_unpack(uint64_t addr, uint64_t size,
+                   uint64_t tweak, struct S390PVResponse *pv_resp)
 {
     struct kvm_s390_pv_unp args = {
         .addr = addr,
@@ -177,7 +182,7 @@ int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak)
         .tweak = tweak,
     };
 
-    return s390_pv_cmd(KVM_PV_UNPACK, &args);
+    return s390_pv_cmd_pv_resp(KVM_PV_UNPACK, &args, pv_resp);
 }
 
 void s390_pv_prep_reset(void)
@@ -185,9 +190,9 @@ void s390_pv_prep_reset(void)
     s390_pv_cmd_exit(KVM_PV_PREP_RESET, NULL);
 }
 
-int s390_pv_verify(void)
+int s390_pv_verify(struct S390PVResponse *pv_resp)
 {
-    return s390_pv_cmd(KVM_PV_VERIFY, NULL);
+    return s390_pv_cmd_pv_resp(KVM_PV_VERIFY, NULL, pv_resp);
 }
 
 void s390_pv_unshare(void)
@@ -195,13 +200,29 @@ void s390_pv_unshare(void)
     s390_pv_cmd_exit(KVM_PV_UNSHARE_ALL, NULL);
 }
 
-void s390_pv_inject_reset_error(CPUState *cs)
+void s390_pv_inject_reset_error(CPUState *cs,
+                                struct S390PVResponse pv_resp)
 {
     int r1 = (cs->kvm_run->s390_sieic.ipa & 0x00f0) >> 4;
     CPUS390XState *env = &S390_CPU(cs)->env;
 
+    union {
+        struct {
+            uint16_t pv_cmd;
+            uint16_t pv_rrc;
+            uint16_t pv_rc;
+            uint16_t diag_rc;
+        };
+        uint64_t regs;
+    } resp = {
+              .pv_cmd = pv_resp.cmd,
+              .pv_rrc = pv_resp.rrc,
+              .pv_rc = pv_resp.rc,
+              .diag_rc = DIAG_308_RC_INVAL_FOR_PV
+             };
+
     /* Report that we are unable to enter protected mode */
-    env->regs[r1 + 1] = DIAG_308_RC_INVAL_FOR_PV;
+    env->regs[r1 + 1] = resp.regs;
 }
 
 uint64_t kvm_s390_pv_dmp_get_size_cpu(void)
-- 
2.49.0

[PULL 4/9] meson/configure: add 'valgrind' option & --{en, dis}able-valgrind flag

[Thomas Huth]

From: Daniel P. Berrangé <berrange@redhat.com>

Currently valgrind debugging support for coroutine stacks is enabled
unconditionally when valgrind/valgrind.h is found. There is no way
to disable valgrind support if valgrind.h is present in the build env.

This is bad for distros, as an dependency far down the chain may cause
valgrind.h to become installed, inadvertently enabling QEMU's valgrind
debugging support. It also means if a distro wants valgrind support
there is no way to mandate this.

The solution is to add a 'valgrind' build feature to meson and thus
configure script.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250425121713.1913424-1-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 meson.build                   | 13 ++++++++++++-
 meson_options.txt             |  2 ++
 scripts/meson-buildoptions.sh |  3 +++
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 8ae70dbe45a..ccd6c71577d 100644
--- a/meson.build
+++ b/meson.build
@@ -2618,7 +2618,17 @@ config_host_data.set('CONFIG_FSTRIM', qga_fstrim)
 # has_header
 config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h'))
 config_host_data.set('CONFIG_LINUX_MAGIC_H', cc.has_header('linux/magic.h'))
-config_host_data.set('CONFIG_VALGRIND_H', cc.has_header('valgrind/valgrind.h'))
+valgrind = false
+if get_option('valgrind').allowed()
+    if cc.has_header('valgrind/valgrind.h')
+        valgrind = true
+    else
+        if get_option('valgrind').enabled()
+            error('valgrind requested but valgrind.h not found')
+        endif
+    endif
+endif
+config_host_data.set('CONFIG_VALGRIND_H', valgrind)
 config_host_data.set('HAVE_BTRFS_H', cc.has_header('linux/btrfs.h'))
 config_host_data.set('HAVE_DRM_H', cc.has_header('libdrm/drm.h'))
 config_host_data.set('HAVE_OPENAT2_H', cc.has_header('linux/openat2.h'))
@@ -4905,6 +4915,7 @@ endif
 if host_os == 'darwin'
   summary_info += {'ParavirtualizedGraphics support': pvg}
 endif
+summary_info += {'valgrind':          valgrind}
 summary(summary_info, bool_yn: true, section: 'Dependencies')
 
 if host_arch == 'unknown'
diff --git a/meson_options.txt b/meson_options.txt
index 59d973bca00..0b4115e733a 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -115,6 +115,8 @@ option('dbus_display', type: 'feature', value: 'auto',
        description: '-display dbus support')
 option('tpm', type : 'feature', value : 'auto',
        description: 'TPM support')
+option('valgrind', type : 'feature', value: 'auto',
+       description: 'valgrind debug support for coroutine stacks')
 
 # Do not enable it by default even for Mingw32, because it doesn't
 # work on Wine.
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
index 3e8e00852b2..d76a239130a 100644
--- a/scripts/meson-buildoptions.sh
+++ b/scripts/meson-buildoptions.sh
@@ -198,6 +198,7 @@ meson_options_help() {
   printf "%s\n" '  u2f             U2F emulation support'
   printf "%s\n" '  uadk            UADK Library support'
   printf "%s\n" '  usb-redir       libusbredir support'
+  printf "%s\n" '  valgrind        valgrind debug support for coroutine stacks'
   printf "%s\n" '  vde             vde network backend support'
   printf "%s\n" '  vdi             vdi image format support'
   printf "%s\n" '  vduse-blk-export'
@@ -526,6 +527,8 @@ _meson_option_parse() {
     --disable-ubsan) printf "%s" -Dubsan=false ;;
     --enable-usb-redir) printf "%s" -Dusb_redir=enabled ;;
     --disable-usb-redir) printf "%s" -Dusb_redir=disabled ;;
+    --enable-valgrind) printf "%s" -Dvalgrind=enabled ;;
+    --disable-valgrind) printf "%s" -Dvalgrind=disabled ;;
     --enable-vde) printf "%s" -Dvde=enabled ;;
     --disable-vde) printf "%s" -Dvde=disabled ;;
     --enable-vdi) printf "%s" -Dvdi=enabled ;;
-- 
2.49.0

[PULL 5/9] Drop support for Python 3.8

[Thomas Huth]

From: Thomas Huth <thuth@redhat.com>

Python 3.8 went "end of life" in October 2024 and Fedora 42 dropped
this version already, so the "python" CI job is currently failing.
Thus it's time to drop support for this Python version in QEMU, too.

While we're at it, also look for "python3.13" in the configure script.

Message-ID: <20250425120710.879518-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 docs/about/build-platforms.rst         |  2 +-
 configure                              | 14 +++++++-------
 python/Makefile                        |  8 ++++----
 python/setup.cfg                       |  7 +++----
 python/tests/minreqs.txt               |  2 +-
 scripts/qapi/mypy.ini                  |  2 +-
 tests/docker/dockerfiles/python.docker |  1 -
 7 files changed, 17 insertions(+), 19 deletions(-)

diff --git a/docs/about/build-platforms.rst b/docs/about/build-platforms.rst
index 52521552c8a..c3651871d20 100644
--- a/docs/about/build-platforms.rst
+++ b/docs/about/build-platforms.rst
@@ -101,7 +101,7 @@ Python runtime
   option of the ``configure`` script to point QEMU to a supported
   version of the Python runtime.
 
-  As of QEMU |version|, the minimum supported version of Python is 3.8.
+  As of QEMU |version|, the minimum supported version of Python is 3.9.
 
 Python build dependencies
   Some of QEMU's build dependencies are written in Python.  Usually these
diff --git a/configure b/configure
index 000309cf610..40705afdf57 100755
--- a/configure
+++ b/configure
@@ -540,17 +540,17 @@ if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arc
 fi
 
 check_py_version() {
-    # We require python >= 3.8.
+    # We require python >= 3.9.
     # NB: a True python conditional creates a non-zero return code (Failure)
-    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
+    "$1" -c 'import sys; sys.exit(sys.version_info < (3,9))'
 }
 
 first_python=
 if test -z "${PYTHON}"; then
     # A bare 'python' is traditionally python 2.x, but some distros
     # have it as python 3.x, so check in both places.
-    for binary in python3 python python3.12 python3.11 \
-                          python3.10 python3.9 python3.8; do
+    for binary in python3 python python3.13 python3.12 python3.11 \
+                          python3.10 python3.9 ; do
         if has "$binary"; then
             python=$(command -v "$binary")
             if check_py_version "$python"; then
@@ -933,7 +933,7 @@ then
     # If first_python is set, there was a binary somewhere even though
     # it was not suitable.  Use it for the error message.
     if test -n "$first_python"; then
-        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
+        error_exit "Cannot use '$first_python', Python >= 3.9 is required." \
             "Use --python=/path/to/python to specify a supported Python."
     else
         error_exit "Python not found. Use --python=/path/to/python"
@@ -941,11 +941,11 @@ then
 fi
 
 if ! check_py_version "$python"; then
-  error_exit "Cannot use '$python', Python >= 3.8 is required." \
+  error_exit "Cannot use '$python', Python >= 3.9 is required." \
              "Use --python=/path/to/python to specify a supported Python." \
              "Maybe try:" \
              "  openSUSE Leap 15.3+: zypper install python39" \
-             "  CentOS 8: dnf install python38"
+             "  CentOS: dnf install python3.12"
 fi
 
 # Resolve PATH
diff --git a/python/Makefile b/python/Makefile
index 1fa4ba2498e..764b79ccb23 100644
--- a/python/Makefile
+++ b/python/Makefile
@@ -9,13 +9,13 @@ help:
 	@echo "make check-minreqs:"
 	@echo "    Run tests in the minreqs virtual environment."
 	@echo "    These tests use the oldest dependencies."
-	@echo "    Requires: Python 3.8"
-	@echo "    Hint (Fedora): 'sudo dnf install python3.8'"
+	@echo "    Requires: Python 3.9"
+	@echo "    Hint (Fedora): 'sudo dnf install python3.9'"
 	@echo ""
 	@echo "make check-tox:"
 	@echo "    Run tests against multiple python versions."
 	@echo "    These tests use the newest dependencies."
-	@echo "    Requires: Python 3.8 - 3.11, and tox."
+	@echo "    Requires: Python 3.9 - 3.11, and tox."
 	@echo "    Hint (Fedora): 'sudo dnf install python3-tox python3.11'"
 	@echo "    The variable QEMU_TOX_EXTRA_ARGS can be use to pass extra"
 	@echo "    arguments to tox".
@@ -59,7 +59,7 @@ PIP_INSTALL = pip install --disable-pip-version-check
 min-venv: $(QEMU_MINVENV_DIR) $(QEMU_MINVENV_DIR)/bin/activate
 $(QEMU_MINVENV_DIR) $(QEMU_MINVENV_DIR)/bin/activate: setup.cfg tests/minreqs.txt
 	@echo "VENV $(QEMU_MINVENV_DIR)"
-	@python3.8 -m venv $(QEMU_MINVENV_DIR)
+	@python3.9 -m venv $(QEMU_MINVENV_DIR)
 	@(								\
 		echo "ACTIVATE $(QEMU_MINVENV_DIR)";			\
 		. $(QEMU_MINVENV_DIR)/bin/activate;			\
diff --git a/python/setup.cfg b/python/setup.cfg
index cf5af7e6641..c48dff280a3 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -14,7 +14,6 @@ classifiers =
     Natural Language :: English
     Operating System :: OS Independent
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
@@ -23,7 +22,7 @@ classifiers =
     Typing :: Typed
 
 [options]
-python_requires = >= 3.8
+python_requires = >= 3.9
 packages =
     qemu.qmp
     qemu.machine
@@ -78,7 +77,7 @@ exclude = __pycache__,
 
 [mypy]
 strict = True
-python_version = 3.8
+python_version = 3.9
 warn_unused_configs = True
 namespace_packages = True
 warn_unused_ignores = False
@@ -186,7 +185,7 @@ multi_line_output=3
 # of python available on your system to run this test.
 
 [tox:tox]
-envlist = py38, py39, py310, py311, py312, py313
+envlist = py39, py310, py311, py312, py313
 skip_missing_interpreters = true
 
 [testenv]
diff --git a/python/tests/minreqs.txt b/python/tests/minreqs.txt
index a3f423efd84..6445407ba87 100644
--- a/python/tests/minreqs.txt
+++ b/python/tests/minreqs.txt
@@ -1,5 +1,5 @@
 # This file lists the ***oldest possible dependencies*** needed to run
-# "make check" successfully under ***Python 3.8***. It is used primarily
+# "make check" successfully under ***Python 3.9***. It is used primarily
 # by GitLab CI to ensure that our stated minimum versions in setup.cfg
 # are truthful and regularly validated.
 #
diff --git a/scripts/qapi/mypy.ini b/scripts/qapi/mypy.ini
index 8109470a031..c9dbcec2db0 100644
--- a/scripts/qapi/mypy.ini
+++ b/scripts/qapi/mypy.ini
@@ -1,4 +1,4 @@
 [mypy]
 strict = True
 disallow_untyped_calls = False
-python_version = 3.8
+python_version = 3.9
diff --git a/tests/docker/dockerfiles/python.docker b/tests/docker/dockerfiles/python.docker
index 8f0af9ef25f..59e70a02484 100644
--- a/tests/docker/dockerfiles/python.docker
+++ b/tests/docker/dockerfiles/python.docker
@@ -15,7 +15,6 @@ ENV PACKAGES \
     python3.11 \
     python3.12 \
     python3.13 \
-    python3.8 \
     python3.9
 
 RUN dnf install -y $PACKAGES
-- 
2.49.0

[PULL 6/9] tests/functional/test_ppc64_pseries: Skip test_ppc64_linux_smt_boot if necessary

[Thomas Huth]

From: Thomas Huth <thuth@redhat.com>

The test_ppc64_linux_smt_boot function lacks the set_machine('pseries'),
so this test is currently failing in case the 'pseries' machine has not
been compiled into the binary. Add the check now to fix it.

Message-ID: <20250424085426.663377-1-thuth@redhat.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 tests/functional/test_ppc64_pseries.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/functional/test_ppc64_pseries.py b/tests/functional/test_ppc64_pseries.py
index fdc404ed033..67057934e8d 100755
--- a/tests/functional/test_ppc64_pseries.py
+++ b/tests/functional/test_ppc64_pseries.py
@@ -63,6 +63,7 @@ def test_ppc64_linux_hpt_smp_boot(self):
         wait_for_console_pattern(self, self.good_message, self.panic_message)
 
     def test_ppc64_linux_smt_boot(self):
+        self.set_machine('pseries')
         self.vm.add_args('-smp', '4,threads=4')
         self.do_test_ppc64_linux_boot()
         console_pattern = 'CPU maps initialized for 4 threads per core'
-- 
2.49.0

[PULL 7/9] meson.build: Put the D-Bus summary into the UI section

[Thomas Huth]

From: Thomas Huth <thuth@redhat.com>

We've got a dedicated section for UI options nowadays, so the
D-Bus display should get reported here, too.

Message-ID: <20250325055125.253669-1-thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index ccd6c71577d..6c61e1dcaec 100644
--- a/meson.build
+++ b/meson.build
@@ -4619,7 +4619,6 @@ summary_info += {'Trace backends':    ','.join(get_option('trace_backends'))}
 if 'simple' in get_option('trace_backends')
   summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
 endif
-summary_info += {'D-Bus display':     dbus_display}
 summary_info += {'QOM debugging':     get_option('qom_cast_debug')}
 summary_info += {'Relocatable install': get_option('relocatable')}
 summary_info += {'vhost-kernel support': have_vhost_kernel}
@@ -4802,6 +4801,7 @@ summary_info = {}
 if host_os == 'darwin'
   summary_info += {'Cocoa support':           cocoa}
 endif
+summary_info += {'D-Bus display':     dbus_display}
 summary_info += {'SDL support':       sdl}
 summary_info += {'SDL image support': sdl_image}
 summary_info += {'GTK support':       gtk}
-- 
2.49.0

[PULL 8/9] hw/rtc/mc146818rtc: Drop pre-v3 migration stream support

[Thomas Huth]

From: Philippe Mathieu-Daudé <philmd@linaro.org>

mc146818rtc's migration stream is at version 3 since commit
56038ef6234 ("RTC: Update the RTC clock only when reading it")
from 12 years ago, released in QEMU v1.3.0!
No versioned machines are that old, we can safely remove
support for older streams and the qdev_set_legacy_instance_id()
call.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Message-ID: <20250115210048.25396-1-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 hw/rtc/mc146818rtc.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/hw/rtc/mc146818rtc.c b/hw/rtc/mc146818rtc.c
index 6f787be7af8..f9f5cf396f0 100644
--- a/hw/rtc/mc146818rtc.c
+++ b/hw/rtc/mc146818rtc.c
@@ -819,7 +819,7 @@ static const VMStateDescription vmstate_rtc_irq_reinject_on_ack_count = {
 static const VMStateDescription vmstate_rtc = {
     .name = "mc146818rtc",
     .version_id = 3,
-    .minimum_version_id = 1,
+    .minimum_version_id = 3,
     .pre_save = rtc_pre_save,
     .post_load = rtc_post_load,
     .fields = (const VMStateField[]) {
@@ -829,13 +829,13 @@ static const VMStateDescription vmstate_rtc = {
         VMSTATE_TIMER_PTR(periodic_timer, MC146818RtcState),
         VMSTATE_INT64(next_periodic_time, MC146818RtcState),
         VMSTATE_UNUSED(3*8),
-        VMSTATE_UINT32_V(irq_coalesced, MC146818RtcState, 2),
-        VMSTATE_UINT32_V(period, MC146818RtcState, 2),
-        VMSTATE_UINT64_V(base_rtc, MC146818RtcState, 3),
-        VMSTATE_UINT64_V(last_update, MC146818RtcState, 3),
-        VMSTATE_INT64_V(offset, MC146818RtcState, 3),
-        VMSTATE_TIMER_PTR_V(update_timer, MC146818RtcState, 3),
-        VMSTATE_UINT64_V(next_alarm_time, MC146818RtcState, 3),
+        VMSTATE_UINT32(irq_coalesced, MC146818RtcState),
+        VMSTATE_UINT32(period, MC146818RtcState),
+        VMSTATE_UINT64(base_rtc, MC146818RtcState),
+        VMSTATE_UINT64(last_update, MC146818RtcState),
+        VMSTATE_INT64(offset, MC146818RtcState),
+        VMSTATE_TIMER_PTR(update_timer, MC146818RtcState),
+        VMSTATE_UINT64(next_alarm_time, MC146818RtcState),
         VMSTATE_END_OF_LIST()
     },
     .subsections = (const VMStateDescription * const []) {
@@ -929,8 +929,6 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
     memory_region_add_subregion(&s->io, 0, &s->coalesced_io);
     memory_region_add_coalescing(&s->coalesced_io, 0, 1);
 
-    qdev_set_legacy_instance_id(dev, s->io_base, 3);
-
     object_property_add_tm(OBJECT(s), "date", rtc_get_date);
 
     qdev_init_gpio_out(dev, &s->irq, 1);
-- 
2.49.0

[PULL 9/9] docs/devel/build-environment: enhance MSYS2 instructions

[Thomas Huth]

From: Pierrick Bouvier <pierrick.bouvier@linaro.org>

Add missing prerequisite packages, and use more explicit makepkg
command.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20250430181047.2043492-1-pierrick.bouvier@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 docs/devel/build-environment.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/devel/build-environment.rst b/docs/devel/build-environment.rst
index f133ef2e012..661f6ea8504 100644
--- a/docs/devel/build-environment.rst
+++ b/docs/devel/build-environment.rst
@@ -97,11 +97,11 @@ build QEMU in MSYS2 itself.
 
 ::
 
-    pacman -S wget
+    pacman -S wget base-devel git
     wget https://raw.githubusercontent.com/msys2/MINGW-packages/refs/heads/master/mingw-w64-qemu/PKGBUILD
     # Some packages may be missing for your environment, installation will still
     # be done though.
-    makepkg -s PKGBUILD || true
+    makepkg --syncdeps --nobuild PKGBUILD || true
 
 Build on windows-aarch64
 ++++++++++++++++++++++++
-- 
2.49.0

Re: [PULL 0/9] Misc patches (s390x, build env, clean-ups)

[Stefan Hajnoczi]

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Applied, thanks.

Please update the changelog at https://wiki.qemu.org/ChangeLog/10.0 for any user-visible changes.

[-- Attachment #2: signature.asc --]
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