x86/sev: Move early startup code into .head.text section

[thirdparty/kernel/stable.git] / arch / x86 / kernel / sev-shared.c

diff --git a/arch/x86/kernel/sev-shared.c b/arch/x86/kernel/sev-shared.c
index 466fe09898ccdb7f7710d2cb65499ffcabe4d6fe..acbec4de3ec31ace1761ecb48138e5056a4e0501 100644 (file)
--- a/arch/x86/kernel/sev-shared.c
+++ b/arch/x86/kernel/sev-shared.c
@@ -89,7 +89,8 @@ static bool __init sev_es_check_cpu_features(void)
        return true;
 }
 
-static void __noreturn sev_es_terminate(unsigned int set, unsigned int reason)
+static void __head __noreturn
+sev_es_terminate(unsigned int set, unsigned int reason)
 {
        u64 val = GHCB_MSR_TERM_REQ;
 
@@ -326,13 +327,7 @@ static int sev_cpuid_hv(struct ghcb *ghcb, struct es_em_ctxt *ctxt, struct cpuid
  */
 static const struct snp_cpuid_table *snp_cpuid_get_table(void)
 {
-       void *ptr;
-
-       asm ("lea cpuid_table_copy(%%rip), %0"
-            : "=r" (ptr)
-            : "p" (&cpuid_table_copy));
-
-       return ptr;
+       return &RIP_REL_REF(cpuid_table_copy);
 }
 
 /*
@@ -391,7 +386,7 @@ static u32 snp_cpuid_calc_xsave_size(u64 xfeatures_en, bool compacted)
        return xsave_size;
 }
 
-static bool
+static bool __head
 snp_cpuid_get_validated_func(struct cpuid_leaf *leaf)
 {
        const struct snp_cpuid_table *cpuid_table = snp_cpuid_get_table();
@@ -528,7 +523,8 @@ static int snp_cpuid_postprocess(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
  * Returns -EOPNOTSUPP if feature not enabled. Any other non-zero return value
  * should be treated as fatal by caller.
  */
-static int snp_cpuid(struct ghcb *ghcb, struct es_em_ctxt *ctxt, struct cpuid_leaf *leaf)
+static int __head
+snp_cpuid(struct ghcb *ghcb, struct es_em_ctxt *ctxt, struct cpuid_leaf *leaf)
 {
        const struct snp_cpuid_table *cpuid_table = snp_cpuid_get_table();
 
@@ -570,7 +566,7 @@ static int snp_cpuid(struct ghcb *ghcb, struct es_em_ctxt *ctxt, struct cpuid_le
  * page yet, so it only supports the MSR based communication with the
  * hypervisor and only the CPUID exit-code.
  */
-void __init do_vc_no_ghcb(struct pt_regs *regs, unsigned long exit_code)
+void __head do_vc_no_ghcb(struct pt_regs *regs, unsigned long exit_code)
 {
        unsigned int subfn = lower_bits(regs->cx, 32);
        unsigned int fn = lower_bits(regs->ax, 32);
@@ -1016,7 +1012,8 @@ struct cc_setup_data {
  * Search for a Confidential Computing blob passed in as a setup_data entry
  * via the Linux Boot Protocol.
  */
-static struct cc_blob_sev_info *find_cc_blob_setup_data(struct boot_params *bp)
+static __head
+struct cc_blob_sev_info *find_cc_blob_setup_data(struct boot_params *bp)
 {
        struct cc_setup_data *sd = NULL;
        struct setup_data *hdr;
@@ -1043,7 +1040,7 @@ static struct cc_blob_sev_info *find_cc_blob_setup_data(struct boot_params *bp)
  * mapping needs to be updated in sync with all the changes to virtual memory
  * layout and related mapping facilities throughout the boot process.
  */
-static void __init setup_cpuid_table(const struct cc_blob_sev_info *cc_info)
+static void __head setup_cpuid_table(const struct cc_blob_sev_info *cc_info)
 {
        const struct snp_cpuid_table *cpuid_table_fw, *cpuid_table;
        int i;