github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 08:33:17 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

Merge branch 'x86/cc' into x86/sev

Browse Source 
Pick up the cc_vendor changes.
This commit is contained in:
Thomas Gleixner 2023-03-30 14:07:05 +02:00
commit 87efe38410
2 changed files with 24 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/x86/coco/core.c
View File

@ -13,7 +13,7 @@
#include <asm/coco.h>
#include <asm/processor.h>
static enum cc_vendor vendor __ro_after_init;
enum cc_vendor cc_vendor __ro_after_init;
static u64 cc_mask __ro_after_init;
static bool intel_cc_platform_has(enum cc_attr attr)
@ -99,7 +99,7 @@ static bool amd_cc_platform_has(enum cc_attr attr)
bool cc_platform_has(enum cc_attr attr)
{
switch (vendor) {
switch (cc_vendor) {
case CC_VENDOR_AMD:
return amd_cc_platform_has(attr);
case CC_VENDOR_INTEL:
@ -119,7 +119,7 @@ u64 cc_mkenc(u64 val)
* - for AMD, bit *set* means the page is encrypted
* - for AMD with vTOM and for Intel, *clear* means encrypted
*/
switch (vendor) {
switch (cc_vendor) {
case CC_VENDOR_AMD:
if (sev_status & MSR_AMD64_SNP_VTOM)
return val & ~cc_mask;
@ -135,7 +135,7 @@ u64 cc_mkenc(u64 val)
u64 cc_mkdec(u64 val)
{
/* See comment in cc_mkenc() */
switch (vendor) {
switch (cc_vendor) {
case CC_VENDOR_AMD:
if (sev_status & MSR_AMD64_SNP_VTOM)
return val | cc_mask;
@ -149,11 +149,6 @@ u64 cc_mkdec(u64 val)
}
EXPORT_SYMBOL_GPL(cc_mkdec);
__init void cc_set_vendor(enum cc_vendor v)
{
vendor = v;
}
__init void cc_set_mask(u64 mask)
{
cc_mask = mask;

23
arch/x86/include/asm/coco.h
View File

@ -10,13 +10,30 @@ enum cc_vendor {
CC_VENDOR_INTEL,
};
void cc_set_vendor(enum cc_vendor v);
void cc_set_mask(u64 mask);
#ifdef CONFIG_ARCH_HAS_CC_PLATFORM
extern enum cc_vendor cc_vendor;
static inline enum cc_vendor cc_get_vendor(void)
{
return cc_vendor;
}
static inline void cc_set_vendor(enum cc_vendor vendor)
{
cc_vendor = vendor;
}
void cc_set_mask(u64 mask);
u64 cc_mkenc(u64 val);
u64 cc_mkdec(u64 val);
#else
static inline enum cc_vendor cc_get_vendor(void)
{
return CC_VENDOR_NONE;
}
static inline void cc_set_vendor(enum cc_vendor vendor) { }
static inline u64 cc_mkenc(u64 val)
{
return val;