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| author | Uros Bizjak <ubizjak@gmail.com> | 2025-11-21 15:14:10 +0100 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2026-02-18 06:42:57 +0000 |
| commit | 834ef6aa0996121184728279c4b81a3b70ee649b (patch) | |
| tree | 53d9ff772e7f3943392bae98c90c7940934f8d3e /arch | |
| parent | 2e7577cd5ddc1f86d1b6c48caf3cfa87dbb14e34 (diff) | |
| download | linux-next-834ef6aa0996121184728279c4b81a3b70ee649b.tar.gz linux-next-834ef6aa0996121184728279c4b81a3b70ee649b.zip | |
x86/hyperv: Use savesegment() instead of inline asm() to save segment registers
Use standard savesegment() utility macro to save segment registers.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Acked-by: Wei Liu <wei.liu@kernel.org>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/hyperv/ivm.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/hyperv/ivm.c b/arch/x86/hyperv/ivm.c index 651771534cae..7365d8f43181 100644 --- a/arch/x86/hyperv/ivm.c +++ b/arch/x86/hyperv/ivm.c @@ -25,6 +25,7 @@ #include <asm/e820/api.h> #include <asm/desc.h> #include <asm/msr.h> +#include <asm/segment.h> #include <uapi/asm/vmx.h> #ifdef CONFIG_AMD_MEM_ENCRYPT @@ -315,16 +316,16 @@ int hv_snp_boot_ap(u32 apic_id, unsigned long start_ip, unsigned int cpu) vmsa->gdtr.base = gdtr.address; vmsa->gdtr.limit = gdtr.size; - asm volatile("movl %%es, %%eax;" : "=a" (vmsa->es.selector)); + savesegment(es, vmsa->es.selector); hv_populate_vmcb_seg(vmsa->es, vmsa->gdtr.base); - asm volatile("movl %%cs, %%eax;" : "=a" (vmsa->cs.selector)); + savesegment(cs, vmsa->cs.selector); hv_populate_vmcb_seg(vmsa->cs, vmsa->gdtr.base); - asm volatile("movl %%ss, %%eax;" : "=a" (vmsa->ss.selector)); + savesegment(ss, vmsa->ss.selector); hv_populate_vmcb_seg(vmsa->ss, vmsa->gdtr.base); - asm volatile("movl %%ds, %%eax;" : "=a" (vmsa->ds.selector)); + savesegment(ds, vmsa->ds.selector); hv_populate_vmcb_seg(vmsa->ds, vmsa->gdtr.base); vmsa->efer = native_read_msr(MSR_EFER); |