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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen stable-4.15] x86/intel: insert Ice Lake-SP and Ice Lake-D model numbers
commit cacad0cdfcf2763e3377316e779532a4a115ae8c
Author: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
AuthorDate: Fri Jun 4 14:45:39 2021 +0200
Commit: Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Jun 4 14:45:39 2021 +0200
x86/intel: insert Ice Lake-SP and Ice Lake-D model numbers
LBR, C-state MSRs should correspond to Ice Lake desktop according to
SDM rev. 74 for both models.
Ice Lake-SP is known to expose IF_PSCHANGE_MC_NO in IA32_ARCH_CAPABILITIES
MSR
(as advisory tells and Whitley SDP confirms) which means the erratum is
fixed
in hardware for that model and therefore it shouldn't be present in
has_if_pschange_mc list. Provisionally assume the same to be the case
for Ice Lake-D.
Signed-off-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
master commit: 95419adfd4b275cffe24b96edcc2f15bc4db8907
master date: 2021-04-26 10:22:48 +0200
---
xen/arch/x86/acpi/cpu_idle.c | 2 ++
xen/arch/x86/hvm/vmx/vmx.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/acpi/cpu_idle.c b/xen/arch/x86/acpi/cpu_idle.c
index c092086b33..d788c8bffc 100644
--- a/xen/arch/x86/acpi/cpu_idle.c
+++ b/xen/arch/x86/acpi/cpu_idle.c
@@ -181,6 +181,8 @@ static void do_get_hw_residencies(void *arg)
case 0x55:
case 0x5E:
/* Ice Lake */
+ case 0x6A:
+ case 0x6C:
case 0x7D:
case 0x7E:
/* Tiger Lake */
diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 8e0aa976c2..dde4f3b70d 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -2973,7 +2973,7 @@ static const struct lbr_info *last_branch_msr_get(void)
/* Goldmont Plus */
case 0x7a:
/* Ice Lake */
- case 0x7d: case 0x7e:
+ case 0x6a: case 0x6c: case 0x7d: case 0x7e:
/* Tiger Lake */
case 0x8c: case 0x8d:
/* Tremont */
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.15
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