accel/whpx: Expose whpx_enabled() to common code

Currently whpx_enabled() is restricted to target-specific code.
By defining CONFIG_WHPX_IS_POSSIBLE we allow its use anywhere.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-26-philmd@linaro.org>

diff --git a/MAINTAINERS b/MAINTAINERS
index c73468b242224f9b2e205ed877dc8df842d1d824..0fd8b2a4e61e58482f261955afa64155bc275130 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -540,6 +540,7 @@ WHPX CPUs
 M: Sunil Muthuswamy <sunilmut@microsoft.com>
 S: Supported
 F: target/i386/whpx/
+F: accel/stubs/whpx-stub.c
 F: include/system/whpx.h
 
 X86 Instruction Emulator

diff --git a/accel/stubs/meson.build b/accel/stubs/meson.build
index 4c34287215fbe4698322e6a52397a1df96c2efd7..9dfc4f9ddaf5bc2933c7987a44727df1c7fc8e8c 100644 (file)
--- a/accel/stubs/meson.build
+++ b/accel/stubs/meson.build
@@ -4,5 +4,6 @@ system_stubs_ss.add(when: 'CONFIG_KVM', if_false: files('kvm-stub.c'))
 system_stubs_ss.add(when: 'CONFIG_TCG', if_false: files('tcg-stub.c'))
 system_stubs_ss.add(when: 'CONFIG_HVF', if_false: files('hvf-stub.c'))
 system_stubs_ss.add(when: 'CONFIG_NVMM', if_false: files('nvmm-stub.c'))
+system_stubs_ss.add(when: 'CONFIG_WHPX', if_false: files('whpx-stub.c'))
 
 specific_ss.add_all(when: ['CONFIG_SYSTEM_ONLY'], if_true: system_stubs_ss)

diff --git a/accel/stubs/whpx-stub.c b/accel/stubs/whpx-stub.c
new file mode 100644 (file)
index 0000000..c564c89
--- /dev/null
+++ b/accel/stubs/whpx-stub.c
@@ -0,0 +1,12 @@
+/*
+ * WHPX stubs for QEMU
+ *
+ *  Copyright (c) Linaro
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "system/whpx.h"
+
+bool whpx_allowed;

diff --git a/include/system/whpx.h b/include/system/whpx.h
index 00ff409b6824d42c63b2c199b57a7a4206dd082a..00f6a3e52367271bf93b18216361d4fc6ca072ee 100644 (file)
--- a/include/system/whpx.h
+++ b/include/system/whpx.h
@@ -16,19 +16,20 @@
 #define QEMU_WHPX_H
 
 #ifdef COMPILING_PER_TARGET
+# ifdef CONFIG_WHPX
+#  define CONFIG_WHPX_IS_POSSIBLE
+# endif /* !CONFIG_WHPX */
+#else
+# define CONFIG_WHPX_IS_POSSIBLE
+#endif /* COMPILING_PER_TARGET */
 
-#ifdef CONFIG_WHPX
-
-int whpx_enabled(void);
+#ifdef CONFIG_WHPX_IS_POSSIBLE
+extern bool whpx_allowed;
+#define whpx_enabled() (whpx_allowed)
 bool whpx_apic_in_platform(void);
-
-#else /* CONFIG_WHPX */
-
-#define whpx_enabled() (0)
+#else /* !CONFIG_WHPX_IS_POSSIBLE */
+#define whpx_enabled() 0
 #define whpx_apic_in_platform() (0)
-
-#endif /* CONFIG_WHPX */
-
-#endif /* COMPILING_PER_TARGET */
+#endif /* !CONFIG_WHPX_IS_POSSIBLE */
 
 #endif /* QEMU_WHPX_H */

diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c
index 5001afad3a73001d4d704c0637e76e8824a53a58..94fd5fc7849032848658faf1f083bd714c28cf9d 100644 (file)
--- a/target/i386/whpx/whpx-all.c
+++ b/target/i386/whpx/whpx-all.c
@@ -242,7 +242,7 @@ struct AccelCPUState {
     WHV_RUN_VP_EXIT_CONTEXT exit_ctx;
 };
 
-static bool whpx_allowed;
+bool whpx_allowed;
 static bool whp_dispatch_initialized;
 static HMODULE hWinHvPlatform, hWinHvEmulation;
 static uint32_t max_vcpu_index;
@@ -2688,11 +2688,6 @@ error:
     return ret;
 }
 
-int whpx_enabled(void)
-{
-    return whpx_allowed;
-}
-
 bool whpx_apic_in_platform(void) {
     return whpx_global.apic_in_platform;
 }