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[Qemu-devel] [PATCH 2/7] x86, mce: broadcast mce depending on the cpu ve
From: |
Marcelo Tosatti |
Subject: |
[Qemu-devel] [PATCH 2/7] x86, mce: broadcast mce depending on the cpu version |
Date: |
Thu, 21 Oct 2010 16:25:48 -0200 |
From: Hidetoshi Seto <address@hidden>
There is no reason why SRAO event received by the main thread
is the only one that being broadcasted.
According to the x86 ASDM vol.3A 15.10.4.1,
MCE signal is broadcast on processor version 06H_EH or later.
This change is required to handle SRAR in smp guests.
Signed-off-by: Hidetoshi Seto <address@hidden>
Signed-off-by: Marcelo Tosatti <address@hidden>
---
target-i386/kvm.c | 29 ++++++++++++++++++++++++-----
1 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index b813953..9144f74 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -1636,6 +1636,28 @@ static void hardware_memory_error(void)
exit(1);
}
+#ifdef KVM_CAP_MCE
+static void kvm_mce_broadcast_rest(CPUState *env)
+{
+ CPUState *cenv;
+ int family, model, cpuver = env->cpuid_version;
+
+ family = (cpuver >> 8) & 0xf;
+ model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0xf);
+
+ /* Broadcast MCA signal for processor version 06H_EH and above */
+ if ((family == 6 && model >= 14) || family > 6) {
+ for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu) {
+ if (cenv == env) {
+ continue;
+ }
+ kvm_inject_x86_mce(cenv, 1, MCI_STATUS_VAL | MCI_STATUS_UC,
+ MCG_STATUS_MCIP | MCG_STATUS_RIPV, 0, 0, 1);
+ }
+ }
+}
+#endif
+
int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr)
{
#if defined(KVM_CAP_MCE)
@@ -1693,6 +1715,7 @@ int kvm_on_sigbus_vcpu(CPUState *env, int code, void
*addr)
fprintf(stderr, "kvm_set_mce: %s\n", strerror(errno));
abort();
}
+ kvm_mce_broadcast_rest(env);
} else
#endif
{
@@ -1715,7 +1738,6 @@ int kvm_on_sigbus(int code, void *addr)
void *vaddr;
ram_addr_t ram_addr;
target_phys_addr_t paddr;
- CPUState *cenv;
/* Hope we are lucky for AO MCE */
vaddr = addr;
@@ -1731,10 +1753,7 @@ int kvm_on_sigbus(int code, void *addr)
kvm_inject_x86_mce(first_cpu, 9, status,
MCG_STATUS_MCIP | MCG_STATUS_RIPV, paddr,
(MCM_ADDR_PHYS << 6) | 0xc, 1);
- for (cenv = first_cpu->next_cpu; cenv != NULL; cenv = cenv->next_cpu) {
- kvm_inject_x86_mce(cenv, 1, MCI_STATUS_VAL | MCI_STATUS_UC,
- MCG_STATUS_MCIP | MCG_STATUS_RIPV, 0, 0, 1);
- }
+ kvm_mce_broadcast_rest(first_cpu);
} else
#endif
{
--
1.7.2.1
- [Qemu-devel] [PATCH 0/7] [PULL] qemu-kvm.git uq/master queue, Marcelo Tosatti, 2010/10/21
- [Qemu-devel] [PATCH 5/7] kvm: factor out kvm_has_msr_star, Marcelo Tosatti, 2010/10/21
- [Qemu-devel] [PATCH 4/7] kvm: add save/restore of MSR_VM_HSAVE_PA, Marcelo Tosatti, 2010/10/21
- [Qemu-devel] [PATCH 3/7] Fix build on !KVM_CAP_MCE, Marcelo Tosatti, 2010/10/21
- [Qemu-devel] [PATCH 7/7] kvm: save/restore x86-64 MSRs on x86-64 kernels, Marcelo Tosatti, 2010/10/21
- [Qemu-devel] [PATCH 1/7] x86, mce: ignore SRAO only when MCG_SER_P is available, Marcelo Tosatti, 2010/10/21
- [Qemu-devel] [PATCH 6/7] kvm: writeback SMP TSCs on migration only, Marcelo Tosatti, 2010/10/21
- [Qemu-devel] [PATCH 2/7] x86, mce: broadcast mce depending on the cpu version,
Marcelo Tosatti <=
- Re: [Qemu-devel] [PATCH 0/7] [PULL] qemu-kvm.git uq/master queue, Anthony Liguori, 2010/10/22