[xen staging] x86/msr: Rename MSR_INTERRUPT_SSP_TABLE to MSR_ISST

[patchbot@xxxxxxx]

commit bd92e2151c19a01a237d7e447dc77210c2242840
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue Dec 24 14:03:49 2024 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Aug 13 13:13:08 2025 +0100

    x86/msr: Rename MSR_INTERRUPT_SSP_TABLE to MSR_ISST
    
    AMD call this whole structure the ISST, which is a better association with 
IST
    than the long form (which becomes ambiguous when abbreviated).
    
    No functional change.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/cpu/common.c            | 2 +-
 xen/arch/x86/include/asm/msr-index.h | 2 +-
 xen/arch/x86/msr.c                   | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/cpu/common.c b/xen/arch/x86/cpu/common.c
index 97bdda1d4a..f6ec5c9df5 100644
--- a/xen/arch/x86/cpu/common.c
+++ b/xen/arch/x86/cpu/common.c
@@ -933,7 +933,7 @@ void load_system_tables(void)
                        wrss(df_ssp,  _p(df_ssp));
                }
 
-               wrmsrl(MSR_INTERRUPT_SSP_TABLE, (unsigned long)ist_ssp);
+               wrmsrl(MSR_ISST, (unsigned long)ist_ssp);
        }
 
        BUILD_BUG_ON(sizeof(*tss) <= 0x67); /* Mandated by the architecture. */
diff --git a/xen/arch/x86/include/asm/msr-index.h 
b/xen/arch/x86/include/asm/msr-index.h
index 2e7e2aff9a..428d993ee8 100644
--- a/xen/arch/x86/include/asm/msr-index.h
+++ b/xen/arch/x86/include/asm/msr-index.h
@@ -157,7 +157,7 @@
 #define MSR_PL1_SSP                         0x000006a5
 #define MSR_PL2_SSP                         0x000006a6
 #define MSR_PL3_SSP                         0x000006a7
-#define MSR_INTERRUPT_SSP_TABLE             0x000006a8
+#define MSR_ISST                            0x000006a8
 
 #define MSR_PKRS                            0x000006e1
 
diff --git a/xen/arch/x86/msr.c b/xen/arch/x86/msr.c
index 2cd46b6c8a..1bf117cbd8 100644
--- a/xen/arch/x86/msr.c
+++ b/xen/arch/x86/msr.c
@@ -138,7 +138,7 @@ int guest_rdmsr(struct vcpu *v, uint32_t msr, uint64_t *val)
     case MSR_RTIT_OUTPUT_BASE ... MSR_RTIT_ADDR_B(7):
     case MSR_U_CET:
     case MSR_S_CET:
-    case MSR_PL0_SSP ... MSR_INTERRUPT_SSP_TABLE:
+    case MSR_PL0_SSP ... MSR_ISST:
     case MSR_AMD64_LWP_CFG:
     case MSR_AMD64_LWP_CBADDR:
     case MSR_PPIN_CTL:
@@ -442,7 +442,7 @@ int guest_wrmsr(struct vcpu *v, uint32_t msr, uint64_t val)
     case MSR_RTIT_OUTPUT_BASE ... MSR_RTIT_ADDR_B(7):
     case MSR_U_CET:
     case MSR_S_CET:
-    case MSR_PL0_SSP ... MSR_INTERRUPT_SSP_TABLE:
+    case MSR_PL0_SSP ... MSR_ISST:
     case MSR_AMD64_LWP_CFG:
     case MSR_AMD64_LWP_CBADDR:
     case MSR_PPIN_CTL:
--
generated by git-patchbot for /home/xen/git/xen.git#staging