This patch hasn''t changed from version 1.
Add a new function - do_cpuid - to the vpmu struct arch_vpmu_ops.
This permits the vpmu to set specific bits in the cpuid for the hvm guest.
Signed-off-by: Dietmar Hahn <dietmar.hahn@ts.fujitsu.com>
xen/arch/x86/hvm/vmx/vmx.c | 2 ++
xen/arch/x86/hvm/vmx/vpmu_core2.c | 7 +++++++
xen/arch/x86/hvm/vpmu.c | 10 ++++++++++
xen/include/asm-x86/hvm/vpmu.h | 5 +++++
4 files changed, 24 insertions(+), 0 deletions(-)
# HG changeset patch
# User Dietmar Hahn <dietmar.hahn@ts.fujitsu.com>
# Date 1331040247 -3600
# Node ID 313da9e9c1cc230a827d9239f7b8deb9f35c2aeb
# Parent 33659563f5897b3dabc93284252f8570ed825e63
diff -r 33659563f589 -r 313da9e9c1cc xen/arch/x86/hvm/vmx/vmx.c
--- a/xen/arch/x86/hvm/vmx/vmx.c Fri Mar 02 12:33:25 2012 +0000
+++ b/xen/arch/x86/hvm/vmx/vmx.c Tue Mar 06 14:24:07 2012 +0100
@@ -1613,6 +1613,8 @@ static void vmx_cpuid_intercept(
break;
}
+ vpmu_do_cpuid(input, eax, ebx, ecx, edx);
+
HVMTRACE_5D (CPUID, input, *eax, *ebx, *ecx, *edx);
}
diff -r 33659563f589 -r 313da9e9c1cc xen/arch/x86/hvm/vmx/vpmu_core2.c
--- a/xen/arch/x86/hvm/vmx/vpmu_core2.c Fri Mar 02 12:33:25 2012 +0000
+++ b/xen/arch/x86/hvm/vmx/vpmu_core2.c Tue Mar 06 14:24:07 2012 +0100
@@ -547,6 +547,12 @@ static int core2_vpmu_do_rdmsr(unsigned
return 1;
}
+static void core2_vpmu_do_cpuid(unsigned int input,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+}
+
static int core2_vpmu_do_interrupt(struct cpu_user_regs *regs)
{
struct vcpu *v = current;
@@ -608,6 +614,7 @@ struct arch_vpmu_ops core2_vpmu_ops = {
.do_wrmsr = core2_vpmu_do_wrmsr,
.do_rdmsr = core2_vpmu_do_rdmsr,
.do_interrupt = core2_vpmu_do_interrupt,
+ .do_cpuid = core2_vpmu_do_cpuid,
.arch_vpmu_destroy = core2_vpmu_destroy,
.arch_vpmu_save = core2_vpmu_save,
.arch_vpmu_load = core2_vpmu_load
diff -r 33659563f589 -r 313da9e9c1cc xen/arch/x86/hvm/vpmu.c
--- a/xen/arch/x86/hvm/vpmu.c Fri Mar 02 12:33:25 2012 +0000
+++ b/xen/arch/x86/hvm/vpmu.c Tue Mar 06 14:24:07 2012 +0100
@@ -62,6 +62,16 @@ int vpmu_do_interrupt(struct cpu_user_re
return 0;
}
+void vpmu_do_cpuid(unsigned int input,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ struct vpmu_struct *vpmu = vcpu_vpmu(current);
+
+ if ( vpmu->arch_vpmu_ops && vpmu->arch_vpmu_ops->do_cpuid)
+ vpmu->arch_vpmu_ops->do_cpuid(input, eax, ebx, ecx, edx);
+}
+
void vpmu_save(struct vcpu *v)
{
struct vpmu_struct *vpmu = vcpu_vpmu(v);
diff -r 33659563f589 -r 313da9e9c1cc xen/include/asm-x86/hvm/vpmu.h
--- a/xen/include/asm-x86/hvm/vpmu.h Fri Mar 02 12:33:25 2012 +0000
+++ b/xen/include/asm-x86/hvm/vpmu.h Tue Mar 06 14:24:07 2012 +0100
@@ -40,6 +40,9 @@ struct arch_vpmu_ops {
int (*do_wrmsr)(unsigned int msr, uint64_t msr_content);
int (*do_rdmsr)(unsigned int msr, uint64_t *msr_content);
int (*do_interrupt)(struct cpu_user_regs *regs);
+ void (*do_cpuid)(unsigned int input,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx);
void (*arch_vpmu_destroy)(struct vcpu *v);
void (*arch_vpmu_save)(struct vcpu *v);
void (*arch_vpmu_load)(struct vcpu *v);
@@ -67,6 +70,8 @@ struct vpmu_struct {
int vpmu_do_wrmsr(unsigned int msr, uint64_t msr_content);
int vpmu_do_rdmsr(unsigned int msr, uint64_t *msr_content);
int vpmu_do_interrupt(struct cpu_user_regs *regs);
+void vpmu_do_cpuid(unsigned int input, unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx);
void vpmu_initialise(struct vcpu *v);
void vpmu_destroy(struct vcpu *v);
void vpmu_save(struct vcpu *v);
--
Company details: http://ts.fujitsu.com/imprint.html