whpx: i386: re-enable guest debug support

Fix what got broken several years ago by adding ops->supports_guest_debug
support as an architecture-specific function.

arm64 WHP doesn't currently provide support needed for this.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20260223233950.96076-7-mohamed@unpredictable.fr
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Mohamed Mediouni
2026-02-24 00:39:28 +01:00
committed by Paolo Bonzini
parent 2c87eb5cad
commit 19b48084f7
4 changed files with 22 additions and 0 deletions

View File

@@ -17,6 +17,7 @@
#include "system/whpx.h"
#include "system/whpx-internal.h"
#include "system/whpx-all.h"
#include "system/whpx-accel-ops.h"
static void *whpx_cpu_thread_fn(void *arg)
@@ -81,6 +82,12 @@ static bool whpx_vcpu_thread_is_idle(CPUState *cpu)
return !whpx_irqchip_in_kernel();
}
static bool whpx_supports_guest_debug(void)
{
return whpx_arch_supports_guest_debug();
}
static void whpx_accel_ops_class_init(ObjectClass *oc, const void *data)
{
AccelOpsClass *ops = ACCEL_OPS_CLASS(oc);
@@ -89,6 +96,7 @@ static void whpx_accel_ops_class_init(ObjectClass *oc, const void *data)
ops->kick_vcpu_thread = whpx_kick_vcpu_thread;
ops->cpu_thread_is_idle = whpx_vcpu_thread_is_idle;
ops->handle_interrupt = generic_handle_interrupt;
ops->supports_guest_debug = whpx_supports_guest_debug;
ops->synchronize_post_reset = whpx_cpu_synchronize_post_reset;
ops->synchronize_post_init = whpx_cpu_synchronize_post_init;

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@@ -17,4 +17,8 @@ void whpx_translate_cpu_breakpoints(
struct whpx_breakpoints *breakpoints,
CPUState *cpu,
int cpu_breakpoint_count);
/* called by whpx-accel-ops */
bool whpx_arch_supports_guest_debug(void);
#endif

View File

@@ -303,6 +303,11 @@ void whpx_translate_cpu_breakpoints(
/* Breakpoints arent supported on this platform */
}
bool whpx_arch_supports_guest_debug(void)
{
return false;
}
static void whpx_get_reg(CPUState *cpu, WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE* val)
{
struct whpx_state *whpx = &whpx_global;

View File

@@ -1272,6 +1272,11 @@ void whpx_apply_breakpoints(
}
}
bool whpx_arch_supports_guest_debug(void)
{
return true;
}
/* Returns the address of the next instruction that is about to be executed. */
static vaddr whpx_vcpu_get_pc(CPUState *cpu, bool exit_context_valid)
{