diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/boot/compressed/Makefile | 7 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/efi_thunk_64.S | 14 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/sev.c | 6 |
3 files changed, 19 insertions, 8 deletions
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 431bf7f846c3..e11813646051 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -28,7 +28,11 @@ KCOV_INSTRUMENT := n targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \ vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4 vmlinux.bin.zst -KBUILD_CFLAGS := -m$(BITS) -O2 +# CLANG_FLAGS must come before any cc-disable-warning or cc-option calls in +# case of cross compiling, as it has the '--target=' flag, which is needed to +# avoid errors with '-march=i386', and future flags may depend on the target to +# be valid. +KBUILD_CFLAGS := -m$(BITS) -O2 $(CLANG_FLAGS) KBUILD_CFLAGS += -fno-strict-aliasing -fPIE KBUILD_CFLAGS += -Wundef KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING @@ -47,7 +51,6 @@ KBUILD_CFLAGS += -D__DISABLE_EXPORTS # Disable relocation relaxation in case the link is not PIE. KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mrelax-relocations=no) KBUILD_CFLAGS += -include $(srctree)/include/linux/hidden.h -KBUILD_CFLAGS += $(CLANG_FLAGS) # sev.c indirectly inludes inat-table.h which is generated during # compilation and stored in $(objtree). Add the directory to the includes so diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S index 8bb92e9f4e97..d05f781d54f2 100644 --- a/arch/x86/boot/compressed/efi_thunk_64.S +++ b/arch/x86/boot/compressed/efi_thunk_64.S @@ -26,8 +26,6 @@ SYM_FUNC_START(__efi64_thunk) push %rbp push %rbx - leaq 1f(%rip), %rbp - movl %ds, %eax push %rax movl %es, %eax @@ -35,6 +33,11 @@ SYM_FUNC_START(__efi64_thunk) movl %ss, %eax push %rax + /* Copy args passed on stack */ + movq 0x30(%rsp), %rbp + movq 0x38(%rsp), %rbx + movq 0x40(%rsp), %rax + /* * Convert x86-64 ABI params to i386 ABI */ @@ -44,13 +47,18 @@ SYM_FUNC_START(__efi64_thunk) movl %ecx, 0x8(%rsp) movl %r8d, 0xc(%rsp) movl %r9d, 0x10(%rsp) + movl %ebp, 0x14(%rsp) + movl %ebx, 0x18(%rsp) + movl %eax, 0x1c(%rsp) - leaq 0x14(%rsp), %rbx + leaq 0x20(%rsp), %rbx sgdt (%rbx) addq $16, %rbx sidt (%rbx) + leaq 1f(%rip), %rbp + /* * Switch to IDT and GDT with 32-bit segments. This is the firmware GDT * and IDT that was installed when the kernel started executing. The diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c index 670e998fe930..28bcf04c022e 100644 --- a/arch/x86/boot/compressed/sev.c +++ b/arch/x86/boot/compressed/sev.c @@ -122,7 +122,7 @@ static enum es_result vc_read_mem(struct es_em_ctxt *ctxt, static bool early_setup_sev_es(void) { if (!sev_es_negotiate_protocol()) - sev_es_terminate(GHCB_SEV_ES_REASON_PROTOCOL_UNSUPPORTED); + sev_es_terminate(GHCB_SEV_ES_PROT_UNSUPPORTED); if (set_page_decrypted((unsigned long)&boot_ghcb_page)) return false; @@ -175,7 +175,7 @@ void do_boot_stage2_vc(struct pt_regs *regs, unsigned long exit_code) enum es_result result; if (!boot_ghcb && !early_setup_sev_es()) - sev_es_terminate(GHCB_SEV_ES_REASON_GENERAL_REQUEST); + sev_es_terminate(GHCB_SEV_ES_GEN_REQ); vc_ghcb_invalidate(boot_ghcb); result = vc_init_em_ctxt(&ctxt, regs, exit_code); @@ -202,5 +202,5 @@ finish: if (result == ES_OK) vc_finish_insn(&ctxt); else if (result != ES_RETRY) - sev_es_terminate(GHCB_SEV_ES_REASON_GENERAL_REQUEST); + sev_es_terminate(GHCB_SEV_ES_GEN_REQ); } |