afeb96cb18
hv_hvcrash_ctxt_save() in arch/x86/hyperv/hv_crash.c currently saves %cr2
and %cr8 using %eax ("=a"). This unnecessarily forces a specific register.
Update the inline assembly to use a general-purpose register ("=r") for
both %cr2 and %cr8. This makes the code more flexible for the compiler
while producing the same saved context contents.
No functional changes.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Long Li <longli@microsoft.com>
Cc: Thomas Gleixner <tglx@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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|---|---|---|
| .. | ||
| .gitignore | ||
| Makefile | ||
| hv_apic.c | ||
| hv_crash.c | ||
| hv_init.c | ||
| hv_spinlock.c | ||
| hv_trampoline.S | ||
| hv_vtl.c | ||
| irqdomain.c | ||
| ivm.c | ||
| mmu.c | ||
| mshv-asm-offsets.c | ||
| mshv_vtl_asm.S | ||
| nested.c | ||