From: Alexander Graf <agraf@suse.de>
To: kvm-ppc@vger.kernel.org
Cc: "kvm@vger.kernel.org mailing list" <kvm@vger.kernel.org>,
Marcelo Tosatti <mtosatti@redhat.com>,
Gleb Natapov <gleb@redhat.com>,
Mihai Caraman <mihai.caraman@freescale.com>
Subject: [PATCH 07/42] KVM: PPC: e500: Expose MMU registers via ONE_REG
Date: Fri, 26 Apr 2013 18:30:02 +0000 [thread overview]
Message-ID: <1367001037-10394-29-git-send-email-agraf@suse.de> (raw)
In-Reply-To: <1367001037-10394-1-git-send-email-agraf@suse.de>
From: Mihai Caraman <mihai.caraman@freescale.com>
MMU registers were exposed to user-space using sregs interface. Add them
to ONE_REG interface using kvmppc_get_one_reg/kvmppc_set_one_reg delegation
mechanism.
Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
Documentation/virtual/kvm/api.txt | 11 ++++
arch/powerpc/include/uapi/asm/kvm.h | 17 ++++++
arch/powerpc/kvm/e500.c | 6 ++-
arch/powerpc/kvm/e500.h | 4 ++
arch/powerpc/kvm/e500_mmu.c | 94 +++++++++++++++++++++++++++++++++++
arch/powerpc/kvm/e500mc.c | 6 ++-
6 files changed, 134 insertions(+), 4 deletions(-)
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 976eb65..1a76663 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1792,6 +1792,17 @@ registers, find a list below:
PPC | KVM_REG_PPC_TSR | 32
PPC | KVM_REG_PPC_OR_TSR | 32
PPC | KVM_REG_PPC_CLEAR_TSR | 32
+ PPC | KVM_REG_PPC_MAS0 | 32
+ PPC | KVM_REG_PPC_MAS1 | 32
+ PPC | KVM_REG_PPC_MAS2 | 64
+ PPC | KVM_REG_PPC_MAS7_3 | 64
+ PPC | KVM_REG_PPC_MAS4 | 32
+ PPC | KVM_REG_PPC_MAS6 | 32
+ PPC | KVM_REG_PPC_MMUCFG | 32
+ PPC | KVM_REG_PPC_TLB0CFG | 32
+ PPC | KVM_REG_PPC_TLB1CFG | 32
+ PPC | KVM_REG_PPC_TLB2CFG | 32
+ PPC | KVM_REG_PPC_TLB3CFG | 32
ARM registers are mapped using the lower 32 bits. The upper 16 of that
is the register group type, or coprocessor number:
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index c0c38ed..0c5cffb 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -449,4 +449,21 @@ struct kvm_get_htab_header {
/* Debugging: Special instruction for software breakpoint */
#define KVM_REG_PPC_DEBUG_INST (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x8b)
+/* MMU registers */
+#define KVM_REG_PPC_MAS0 (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x8c)
+#define KVM_REG_PPC_MAS1 (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x8d)
+#define KVM_REG_PPC_MAS2 (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x8e)
+#define KVM_REG_PPC_MAS7_3 (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x8f)
+#define KVM_REG_PPC_MAS4 (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x90)
+#define KVM_REG_PPC_MAS6 (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x91)
+#define KVM_REG_PPC_MMUCFG (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x92)
+/*
+ * TLBnCFG fields TLBnCFG_N_ENTRY and TLBnCFG_ASSOC can be changed only using
+ * KVM_CAP_SW_TLB ioctl
+ */
+#define KVM_REG_PPC_TLB0CFG (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x93)
+#define KVM_REG_PPC_TLB1CFG (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x94)
+#define KVM_REG_PPC_TLB2CFG (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x95)
+#define KVM_REG_PPC_TLB3CFG (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x96)
+
#endif /* __LINUX_KVM_POWERPC_H */
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index 576010f..ce6b73c 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -428,13 +428,15 @@ int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
union kvmppc_one_reg *val)
{
- return -EINVAL;
+ int r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
+ return r;
}
int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
union kvmppc_one_reg *val)
{
- return -EINVAL;
+ int r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
+ return r;
}
struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index 33db48a..b73ca7a 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -131,6 +131,10 @@ void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500);
void kvmppc_get_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
int kvmppc_set_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+int kvmppc_get_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
+ union kvmppc_one_reg *val);
+int kvmppc_set_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
+ union kvmppc_one_reg *val);
#ifdef CONFIG_KVM_E500V2
unsigned int kvmppc_e500_get_sid(struct kvmppc_vcpu_e500 *vcpu_e500,
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index 5c44759..44f7762 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -596,6 +596,100 @@ int kvmppc_set_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
return 0;
}
+int kvmppc_get_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
+ union kvmppc_one_reg *val)
+{
+ int r = 0;
+ long int i;
+
+ switch (id) {
+ case KVM_REG_PPC_MAS0:
+ *val = get_reg_val(id, vcpu->arch.shared->mas0);
+ break;
+ case KVM_REG_PPC_MAS1:
+ *val = get_reg_val(id, vcpu->arch.shared->mas1);
+ break;
+ case KVM_REG_PPC_MAS2:
+ *val = get_reg_val(id, vcpu->arch.shared->mas2);
+ break;
+ case KVM_REG_PPC_MAS7_3:
+ *val = get_reg_val(id, vcpu->arch.shared->mas7_3);
+ break;
+ case KVM_REG_PPC_MAS4:
+ *val = get_reg_val(id, vcpu->arch.shared->mas4);
+ break;
+ case KVM_REG_PPC_MAS6:
+ *val = get_reg_val(id, vcpu->arch.shared->mas6);
+ break;
+ case KVM_REG_PPC_MMUCFG:
+ *val = get_reg_val(id, vcpu->arch.mmucfg);
+ break;
+ case KVM_REG_PPC_TLB0CFG:
+ case KVM_REG_PPC_TLB1CFG:
+ case KVM_REG_PPC_TLB2CFG:
+ case KVM_REG_PPC_TLB3CFG:
+ i = id - KVM_REG_PPC_TLB0CFG;
+ *val = get_reg_val(id, vcpu->arch.tlbcfg[i]);
+ break;
+ default:
+ r = -EINVAL;
+ break;
+ }
+
+ return r;
+}
+
+int kvmppc_set_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
+ union kvmppc_one_reg *val)
+{
+ int r = 0;
+ long int i;
+
+ switch (id) {
+ case KVM_REG_PPC_MAS0:
+ vcpu->arch.shared->mas0 = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_MAS1:
+ vcpu->arch.shared->mas1 = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_MAS2:
+ vcpu->arch.shared->mas2 = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_MAS7_3:
+ vcpu->arch.shared->mas7_3 = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_MAS4:
+ vcpu->arch.shared->mas4 = set_reg_val(id, *val);
+ break;
+ case KVM_REG_PPC_MAS6:
+ vcpu->arch.shared->mas6 = set_reg_val(id, *val);
+ break;
+ /* Only allow MMU registers to be set to the config supported by KVM */
+ case KVM_REG_PPC_MMUCFG: {
+ u32 reg = set_reg_val(id, *val);
+ if (reg != vcpu->arch.mmucfg)
+ r = -EINVAL;
+ break;
+ }
+ case KVM_REG_PPC_TLB0CFG:
+ case KVM_REG_PPC_TLB1CFG:
+ case KVM_REG_PPC_TLB2CFG:
+ case KVM_REG_PPC_TLB3CFG: {
+ /* MMU geometry (N_ENTRY/ASSOC) can be set only using SW_TLB */
+ u32 reg = set_reg_val(id, *val);
+ i = id - KVM_REG_PPC_TLB0CFG;
+ if (reg != vcpu->arch.tlbcfg[i])
+ r = -EINVAL;
+ break;
+ }
+ default:
+ r = -EINVAL;
+ break;
+ }
+
+ return r;
+}
+
int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
struct kvm_config_tlb *cfg)
{
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index b071bdc..ab073a8 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -258,13 +258,15 @@ int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
union kvmppc_one_reg *val)
{
- return -EINVAL;
+ int r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
+ return r;
}
int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
union kvmppc_one_reg *val)
{
- return -EINVAL;
+ int r = kvmppc_set_one_reg_e500_tlb(vcpu, id, val);
+ return r;
}
struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
--
1.6.0.2
next prev parent reply other threads:[~2013-04-26 18:30 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-26 8:24 [PATCH 00/20] KVM: PPC: In-kernel MPIC support with irqfd v4 Alexander Graf
2013-04-26 8:24 ` [PATCH 01/20] KVM: Add KVM_IRQCHIP_NUM_PINS in addition to KVM_IOAPIC_NUM_PINS Alexander Graf
2013-04-26 8:24 ` [PATCH 02/20] KVM: Introduce CONFIG_HAVE_KVM_IRQ_ROUTING Alexander Graf
2013-04-26 8:24 ` [PATCH 03/20] KVM: Drop __KVM_HAVE_IOAPIC condition on irq routing Alexander Graf
2013-04-26 8:24 ` [PATCH 04/20] KVM: Remove kvm_get_intr_delivery_bitmask Alexander Graf
2013-04-26 8:24 ` [PATCH 05/20] KVM: Move irq routing to generic code Alexander Graf
2013-04-26 8:24 ` [PATCH 06/20] KVM: Extract generic irqchip logic into irqchip.c Alexander Graf
2013-04-26 8:24 ` [PATCH 07/20] KVM: Move irq routing setup to irqchip.c Alexander Graf
2013-04-26 8:24 ` [PATCH 08/20] KVM: Move irqfd resample cap handling to generic code Alexander Graf
2013-04-26 8:24 ` [PATCH 09/20] kvm: add device control API Alexander Graf
2013-04-26 8:24 ` [PATCH 10/20] kvm/ppc/mpic: import hw/openpic.c from QEMU Alexander Graf
2013-04-26 8:24 ` [PATCH 11/20] kvm/ppc/mpic: remove some obviously unneeded code Alexander Graf
2013-04-26 8:24 ` [PATCH 12/20] kvm/ppc/mpic: adapt to kernel style and environment Alexander Graf
2013-04-26 8:24 ` [PATCH 13/20] kvm/ppc/mpic: in-kernel MPIC emulation Alexander Graf
2013-04-26 8:24 ` [PATCH 14/20] kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC Alexander Graf
2013-04-26 8:24 ` [PATCH 15/20] KVM: PPC: Support irq routing and irqfd for in-kernel MPIC Alexander Graf
2013-04-26 8:24 ` [PATCH 16/20] KVM: PPC: MPIC: Add support for KVM_IRQ_LINE Alexander Graf
2013-04-26 8:24 ` [PATCH 17/20] KVM: PPC: MPIC: Restrict to e500 platforms Alexander Graf
2013-04-26 8:24 ` [PATCH 18/20] KVM: IA64: Carry non-ia64 changes into ia64 Alexander Graf
2013-04-26 8:24 ` [PATCH 19/20] kvm: destroy emulated devices on VM exit Alexander Graf
2013-04-26 8:24 ` [PATCH 20/20] kvm/ppc/mpic: Eliminate mmio_mapped Alexander Graf
2013-04-26 18:29 ` [PATCH 00/20] KVM: PPC: In-kernel MPIC support with irqfd v4 Alexander Graf
2013-04-26 18:29 ` [PATCH 01/20] KVM: Add KVM_IRQCHIP_NUM_PINS in addition to KVM_IOAPIC_NUM_PINS Alexander Graf
2013-04-26 18:29 ` [PATCH 02/20] KVM: Introduce CONFIG_HAVE_KVM_IRQ_ROUTING Alexander Graf
2013-04-26 18:29 ` [PATCH 03/20] KVM: Drop __KVM_HAVE_IOAPIC condition on irq routing Alexander Graf
2013-04-26 18:29 ` [PATCH 04/20] KVM: Remove kvm_get_intr_delivery_bitmask Alexander Graf
2013-04-26 18:29 ` [PATCH 05/20] KVM: Move irq routing to generic code Alexander Graf
2013-04-26 18:29 ` [PATCH 06/20] KVM: Extract generic irqchip logic into irqchip.c Alexander Graf
2013-04-26 18:29 ` [PATCH 07/20] KVM: Move irq routing setup to irqchip.c Alexander Graf
2013-04-26 18:29 ` [PATCH 08/20] KVM: Move irqfd resample cap handling to generic code Alexander Graf
2013-04-26 18:29 ` [PATCH 09/20] kvm: add device control API Alexander Graf
2013-04-26 18:29 ` [PATCH 10/20] kvm/ppc/mpic: import hw/openpic.c from QEMU Alexander Graf
2013-04-26 18:29 ` [PATCH 11/20] kvm/ppc/mpic: remove some obviously unneeded code Alexander Graf
2013-04-26 18:29 ` [PATCH 12/20] kvm/ppc/mpic: adapt to kernel style and environment Alexander Graf
2013-04-26 18:29 ` [PATCH 13/20] kvm/ppc/mpic: in-kernel MPIC emulation Alexander Graf
2013-04-26 18:29 ` [PATCH 14/20] kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC Alexander Graf
2013-04-26 18:29 ` [PATCH 15/20] KVM: PPC: Support irq routing and irqfd for in-kernel MPIC Alexander Graf
2013-04-26 18:29 ` [PATCH 16/20] KVM: PPC: MPIC: Add support for KVM_IRQ_LINE Alexander Graf
2013-04-26 18:29 ` [PATCH 17/20] KVM: PPC: MPIC: Restrict to e500 platforms Alexander Graf
2013-04-26 18:29 ` [PATCH 18/20] KVM: IA64: Carry non-ia64 changes into ia64 Alexander Graf
2013-04-26 18:29 ` [PATCH 19/20] kvm: destroy emulated devices on VM exit Alexander Graf
2013-04-26 18:29 ` [PATCH 20/20] kvm/ppc/mpic: Eliminate mmio_mapped Alexander Graf
2013-04-26 18:29 ` [PULL 00/42] ppc patch queue 2013-04-26 for 3.10 Alexander Graf
2013-04-28 10:05 ` Gleb Natapov
2013-04-26 18:29 ` [PATCH 01/42] KVM: PPC: cache flush for kernel managed pages Alexander Graf
2013-04-26 18:29 ` [PATCH 02/42] KVM: PPC: debug stub interface parameter defined Alexander Graf
2013-04-26 18:29 ` [PATCH 03/42] Rename EMULATE_DO_PAPR to EMULATE_EXIT_USER Alexander Graf
2013-04-26 18:29 ` [PATCH 04/42] KVM: extend EMULATE_EXIT_USER to support different exit reasons Alexander Graf
2013-04-26 18:30 ` [PATCH 05/42] booke: exit to user space if emulator request Alexander Graf
2013-04-26 18:30 ` [PATCH 06/42] KVM: PPC: Book3E: Refactor ONE_REG ioctl implementation Alexander Graf
2013-04-26 18:30 ` Alexander Graf [this message]
2013-04-26 18:30 ` [PATCH 08/42] KVM: PPC: e500: Move vcpu's MMU configuration to dedicated functions Alexander Graf
2013-04-26 18:30 ` [PATCH 09/42] KVM: PPC: e500: Add support for TLBnPS registers Alexander Graf
2013-04-26 18:30 ` [PATCH 10/42] KVM: PPC: e500: Add support for EPTCFG register Alexander Graf
2013-04-26 18:30 ` [PATCH 11/42] KVM: PPC: e500: Remove E.PT and E.HV.LRAT categories from VCPUs Alexander Graf
2013-04-26 18:30 ` [PATCH 12/42] KVM: PPC: e500mc: Enable e6500 cores Alexander Graf
2013-04-26 18:30 ` [PATCH 13/42] KVM: PPC: e500: Add e6500 core to Kconfig description Alexander Graf
2013-04-26 18:30 ` [PATCH 14/42] KVM: PPC: Book3S HV: Make HPT reading code notice R/C bit changes Alexander Graf
2013-04-26 18:30 ` [PATCH 15/42] KVM: PPC: Book3S HV: Report VPA and DTL modifications in dirty map Alexander Graf
2013-04-26 18:30 ` [PATCH 16/42] KVM: Add KVM_IRQCHIP_NUM_PINS in addition to KVM_IOAPIC_NUM_PINS Alexander Graf
2013-04-28 5:41 ` Gleb Natapov
2013-04-28 9:46 ` Alexander Graf
2013-04-26 18:30 ` [PATCH 17/42] KVM: Introduce CONFIG_HAVE_KVM_IRQ_ROUTING Alexander Graf
2013-04-26 18:30 ` [PATCH 18/42] KVM: Drop __KVM_HAVE_IOAPIC condition on irq routing Alexander Graf
2013-04-26 18:30 ` [PATCH 19/42] KVM: Remove kvm_get_intr_delivery_bitmask Alexander Graf
2013-04-26 18:30 ` [PATCH 20/42] KVM: Move irq routing to generic code Alexander Graf
2013-04-26 18:30 ` [PATCH 21/42] KVM: Extract generic irqchip logic into irqchip.c Alexander Graf
2013-04-26 18:30 ` [PATCH 22/42] KVM: Move irq routing setup to irqchip.c Alexander Graf
2013-04-26 18:30 ` [PATCH 23/42] KVM: Move irqfd resample cap handling to generic code Alexander Graf
2013-04-26 18:30 ` [PATCH 24/42] kvm: add device control API Alexander Graf
2013-04-26 18:30 ` [PATCH 25/42] kvm/ppc/mpic: import hw/openpic.c from QEMU Alexander Graf
2013-04-26 18:30 ` [PATCH 26/42] kvm/ppc/mpic: remove some obviously unneeded code Alexander Graf
2013-04-26 18:30 ` [PATCH 27/42] kvm/ppc/mpic: adapt to kernel style and environment Alexander Graf
2013-04-26 18:30 ` [PATCH 28/42] kvm/ppc/mpic: in-kernel MPIC emulation Alexander Graf
2013-04-26 18:30 ` [PATCH 29/42] kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC Alexander Graf
2013-04-26 18:30 ` [PATCH 30/42] KVM: PPC: Support irq routing and irqfd for in-kernel MPIC Alexander Graf
2013-04-26 18:30 ` [PATCH 31/42] KVM: PPC: MPIC: Add support for KVM_IRQ_LINE Alexander Graf
2013-04-26 18:30 ` [PATCH 32/42] KVM: PPC: MPIC: Restrict to e500 platforms Alexander Graf
2013-04-26 18:30 ` [PATCH 33/42] KVM: IA64: Carry non-ia64 changes into ia64 Alexander Graf
2013-04-26 18:30 ` [PATCH 34/42] kvm: destroy emulated devices on VM exit Alexander Graf
2013-04-28 5:43 ` Gleb Natapov
2013-04-28 9:47 ` Alexander Graf
2013-04-26 18:30 ` [PATCH 35/42] kvm/ppc/mpic: Eliminate mmio_mapped Alexander Graf
2013-04-26 18:30 ` [PATCH 36/42] KVM: PPC: Book3S: Add infrastructure to implement kernel-side RTAS calls Alexander Graf
2013-04-26 18:30 ` [PATCH 37/42] KVM: PPC: Book3S: Add kernel emulation for the XICS interrupt controller Alexander Graf
2013-04-26 18:30 ` [PATCH 38/42] KVM: PPC: Book3S HV: Speed up wakeups of CPUs on HV KVM Alexander Graf
2013-04-26 18:30 ` [PATCH 39/42] KVM: PPC: Book3S HV: Add support for real mode ICP in XICS emulation Alexander Graf
2013-04-26 18:30 ` [PATCH 40/42] KVM: PPC: Book3S HV: Improve real-mode handling of external interrupts Alexander Graf
2013-04-26 18:30 ` [PATCH 41/42] KVM: PPC: Book3S: Add support for ibm,int-on/off RTAS calls Alexander Graf
2013-04-26 18:30 ` [PATCH 42/42] KVM: PPC: Book3S: Facilities to save/restore XICS presentation ctrler state Alexander Graf
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