[PATCH 2/6] x86/vpmu: Expose PEBS and DS area in PV mode

[Teddy Astie]

I don't see any reason for them for not be available, especially
since core2_vpmu_do_wrmsr has PV specific logic for MSR_IA32_DS_AREA.

Fixes: 27c554198666 ("x86/VPMU: add support for PMU register handling on PV 
guests")
Signed-off-by: Teddy Astie <teddy.as...@vates.tech>
---
 xen/arch/x86/pv/emul-priv-op.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/arch/x86/pv/emul-priv-op.c b/xen/arch/x86/pv/emul-priv-op.c
index b2556f9213..0d93218030 100644
--- a/xen/arch/x86/pv/emul-priv-op.c
+++ b/xen/arch/x86/pv/emul-priv-op.c
@@ -993,6 +993,8 @@ static int cf_check read_msr(
     case MSR_P6_EVNTSEL(0) ... MSR_P6_EVNTSEL(7):
     case MSR_CORE_PERF_FIXED_CTR0 ... MSR_CORE_PERF_FIXED_CTR2:
     case MSR_CORE_PERF_FIXED_CTR_CTRL ... MSR_CORE_PERF_GLOBAL_OVF_CTRL:
+    case MSR_IA32_PEBS_ENABLE:
+    case MSR_IA32_DS_AREA:
         if ( boot_cpu_data.vendor == X86_VENDOR_INTEL )
         {
             vpmu_msr = true;
@@ -1170,6 +1172,8 @@ static int cf_check write_msr(
     case MSR_P6_EVNTSEL(0) ... MSR_P6_EVNTSEL(7):
     case MSR_CORE_PERF_FIXED_CTR0 ... MSR_CORE_PERF_FIXED_CTR2:
     case MSR_CORE_PERF_FIXED_CTR_CTRL ... MSR_CORE_PERF_GLOBAL_OVF_CTRL:
+    case MSR_IA32_PEBS_ENABLE:
+    case MSR_IA32_DS_AREA:
         if ( boot_cpu_data.vendor == X86_VENDOR_INTEL )
         {
             vpmu_msr = true;
-- 
2.53.0



--
Teddy Astie | Vates XCP-ng Developer

XCP-ng & Xen Orchestra - Vates solutions

web: https://vates.tech