x86/emul: Switch x86_emulate_ctxt to cpu_policy

As with struct domain, retain cpuid as a valid alias for local code clarity.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>

diff --git a/tools/fuzz/x86_instruction_emulator/fuzz-emul.c b/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
index 966e46bee1995d386b6e54efab743ff94f8fff3f..4885a68210d00b7fae26e53d6e92bea910f96530 100644 (file)
--- a/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
+++ b/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
@@ -893,7 +893,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data_p, size_t size)
     struct x86_emulate_ctxt ctxt = {
         .data = &state,
         .regs = &input.regs,
-        .cpuid = &cp,
+        .cpu_policy = &cp,
         .addr_size = 8 * sizeof(void *),
         .sp_size = 8 * sizeof(void *),
     };

diff --git a/tools/tests/x86_emulator/test_x86_emulator.c b/tools/tests/x86_emulator/test_x86_emulator.c
index 3e30ec51fe6fe1bf78e64f3632594422a8e1909b..55a1394e1430cbedfdaa70aa422bbc63e7383e79 100644 (file)
--- a/tools/tests/x86_emulator/test_x86_emulator.c
+++ b/tools/tests/x86_emulator/test_x86_emulator.c
@@ -909,7 +909,7 @@ int main(int argc, char **argv)
 
     ctxt.regs = &regs;
     ctxt.force_writeback = 0;
-    ctxt.cpuid     = &cp;
+    ctxt.cpu_policy = &cp;
     ctxt.lma       = sizeof(void *) == 8;
     ctxt.addr_size = 8 * sizeof(void *);
     ctxt.sp_size   = 8 * sizeof(void *);

diff --git a/tools/tests/x86_emulator/x86-emulate.c b/tools/tests/x86_emulator/x86-emulate.c
index f6ee0943975143c70e08ffddebc215bc71ce5e64..2692404df9064796a157484ff24b8c95fc9c2a11 100644 (file)
--- a/tools/tests/x86_emulator/x86-emulate.c
+++ b/tools/tests/x86_emulator/x86-emulate.c
@@ -25,7 +25,7 @@
 #endif
 
 uint32_t mxcsr_mask = 0x0000ffbf;
-struct cpuid_policy cp;
+struct cpu_policy cp;
 
 static char fpu_save_area[0x4000] __attribute__((__aligned__((64))));
 static bool use_xsave;

diff --git a/xen/arch/x86/hvm/emulate.c b/xen/arch/x86/hvm/emulate.c
index 95364deb1996c272acf82ca30b781fe28c47ffff..5691725d6c6f4f5af9e7c8a2fcae4ca6efbd619e 100644 (file)
--- a/xen/arch/x86/hvm/emulate.c
+++ b/xen/arch/x86/hvm/emulate.c
@@ -2771,7 +2771,7 @@ int hvm_emulate_one_mmio(unsigned long mfn, unsigned long gla)
 void hvm_emulate_one_vm_event(enum emul_kind kind, unsigned int trapnr,
     unsigned int errcode)
 {
-    struct hvm_emulate_ctxt ctx = {{ 0 }};
+    struct hvm_emulate_ctxt ctx = {};
     int rc;
 
     hvm_emulate_init_once(&ctx, NULL, guest_cpu_user_regs());
@@ -2846,7 +2846,7 @@ void hvm_emulate_init_once(
 
     hvmemul_ctxt->validate = validate;
     hvmemul_ctxt->ctxt.regs = regs;
-    hvmemul_ctxt->ctxt.cpuid = curr->domain->arch.cpuid;
+    hvmemul_ctxt->ctxt.cpu_policy = curr->domain->arch.cpu_policy;
     hvmemul_ctxt->ctxt.force_writeback = true;
 }
 

diff --git a/xen/arch/x86/mm/shadow/hvm.c b/xen/arch/x86/mm/shadow/hvm.c
index e2ee1c77056fcfaa5f5520eab7ea040d66ead0ea..cc84af01925accb9aee0f177aef4d1b0f740265a 100644 (file)
--- a/xen/arch/x86/mm/shadow/hvm.c
+++ b/xen/arch/x86/mm/shadow/hvm.c
@@ -319,7 +319,7 @@ const struct x86_emulate_ops *shadow_init_emulation(
     memset(sh_ctxt, 0, sizeof(*sh_ctxt));
 
     sh_ctxt->ctxt.regs = regs;
-    sh_ctxt->ctxt.cpuid = curr->domain->arch.cpuid;
+    sh_ctxt->ctxt.cpu_policy = curr->domain->arch.cpu_policy;
     sh_ctxt->ctxt.lma = hvm_long_mode_active(curr);
 
     /* Segment cache initialisation. Primed with CS. */

diff --git a/xen/arch/x86/pv/emul-priv-op.c b/xen/arch/x86/pv/emul-priv-op.c
index 5da00e24e4ff15a9ef61c10002a3e511fced799c..ab52768271c5e07dcdeb83014c56ba75d72feb9d 100644 (file)
--- a/xen/arch/x86/pv/emul-priv-op.c
+++ b/xen/arch/x86/pv/emul-priv-op.c
@@ -1327,7 +1327,7 @@ int pv_emulate_privileged_op(struct cpu_user_regs *regs)
     struct domain *currd = curr->domain;
     struct priv_op_ctxt ctxt = {
         .ctxt.regs = regs,
-        .ctxt.cpuid = currd->arch.cpuid,
+        .ctxt.cpu_policy = currd->arch.cpu_policy,
         .ctxt.lma = !is_pv_32bit_domain(currd),
     };
     int rc;

diff --git a/xen/arch/x86/pv/ro-page-fault.c b/xen/arch/x86/pv/ro-page-fault.c
index 5963f5ee2d512a482b76f040eca4f4f314f91390..0d02c7d2ab10c2049ee0bf0d6c663128eb6abcf0 100644 (file)
--- a/xen/arch/x86/pv/ro-page-fault.c
+++ b/xen/arch/x86/pv/ro-page-fault.c
@@ -356,7 +356,7 @@ int pv_ro_page_fault(unsigned long addr, struct cpu_user_regs *regs)
     unsigned int addr_size = is_pv_32bit_domain(currd) ? 32 : BITS_PER_LONG;
     struct x86_emulate_ctxt ctxt = {
         .regs      = regs,
-        .cpuid     = currd->arch.cpuid,
+        .cpu_policy = currd->arch.cpu_policy,
         .addr_size = addr_size,
         .sp_size   = addr_size,
         .lma       = addr_size > 32,

diff --git a/xen/arch/x86/x86_emulate/private.h b/xen/arch/x86/x86_emulate/private.h
index 653a298c705beaefcb39a37924e486fb79596219..8dee019731ae2fbd5b82d50bd1af500bb6123011 100644 (file)
--- a/xen/arch/x86/x86_emulate/private.h
+++ b/xen/arch/x86/x86_emulate/private.h
@@ -505,7 +505,7 @@ in_protmode(
 })
 
 static inline bool
-_amd_like(const struct cpuid_policy *cp)
+_amd_like(const struct cpu_policy *cp)
 {
     return cp->x86_vendor & (X86_VENDOR_AMD | X86_VENDOR_HYGON);
 }
@@ -513,7 +513,7 @@ _amd_like(const struct cpuid_policy *cp)
 static inline bool
 amd_like(const struct x86_emulate_ctxt *ctxt)
 {
-    return _amd_like(ctxt->cpuid);
+    return _amd_like(ctxt->cpu_policy);
 }
 
 #define vcpu_has_fpu()         (ctxt->cpuid->basic.fpu)

diff --git a/xen/arch/x86/x86_emulate/x86_emulate.h b/xen/arch/x86/x86_emulate/x86_emulate.h
index 75015104fbdbb41352aa56305f185b07568b0311..0139d16da70c247cb11cdba43520fb6e7c7ce230 100644 (file)
--- a/xen/arch/x86/x86_emulate/x86_emulate.h
+++ b/xen/arch/x86/x86_emulate/x86_emulate.h
@@ -565,8 +565,11 @@ struct x86_emulate_ctxt
      * Input-only state:
      */
 
-    /* CPUID Policy for the domain. */
-    const struct cpuid_policy *cpuid;
+    /* CPU policy for the domain.  Allow aliases for local code clarity. */
+    union {
+        struct cpu_policy *cpu_policy;
+        struct cpu_policy *cpuid;
+    };
 
     /* Set this if writes may have side effects. */
     bool force_writeback;