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[RFC v2 13/14] arm/kvm: handle guest exit of hypercall
From: |
Heyi Guo |
Subject: |
[RFC v2 13/14] arm/kvm: handle guest exit of hypercall |
Date: |
Tue, 5 Nov 2019 17:10:55 +0800 |
Add support to handle guest exit of hypercall, and forward to SDEI
dispatcher if SDEI is enabled and it is an SDEI request.
Signed-off-by: Heyi Guo <address@hidden>
Cc: Peter Maydell <address@hidden>
Cc: Dave Martin <address@hidden>
Cc: Marc Zyngier <address@hidden>
Cc: Mark Rutland <address@hidden>
Cc: James Morse <address@hidden>
---
target/arm/kvm.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index b473c63edb..035a39e49f 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -30,6 +30,7 @@
#include "hw/boards.h"
#include "hw/irq.h"
#include "qemu/log.h"
+#include "sdei.h"
const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
KVM_CAP_LAST_INFO
@@ -676,6 +677,19 @@ MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run
*run)
}
+static void kvm_arm_handle_hypercall(CPUState *cs, struct kvm_run *run)
+{
+ uint32_t func_id = run->hypercall.args[0];
+
+ if (sdei_enabled &&
+ func_id >= SDEI_1_0_FN_BASE && func_id <= SDEI_MAX_REQ) {
+ sdei_handle_request(cs, run);
+ return;
+ }
+
+ run->hypercall.args[0] = -1;
+}
+
int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
{
int ret = 0;
@@ -686,6 +700,9 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
ret = EXCP_DEBUG;
} /* otherwise return to guest */
break;
+ case KVM_EXIT_HYPERCALL:
+ kvm_arm_handle_hypercall(cs, run);
+ break;
default:
qemu_log_mask(LOG_UNIMP, "%s: un-handled exit reason %d\n",
__func__, run->exit_reason);
--
2.19.1
- [RFC v2 00/14] Add SDEI support for arm64, Heyi Guo, 2019/11/05
- [RFC v2 04/14] arm: add CONFIG_SDEI build flag, Heyi Guo, 2019/11/05
- [RFC v2 06/14] arm/sdei: add system reset callback, Heyi Guo, 2019/11/05
- [RFC v2 07/14] arm/sdei: add support to trigger event by GIC interrupt ID, Heyi Guo, 2019/11/05
- [RFC v2 13/14] arm/kvm: handle guest exit of hypercall,
Heyi Guo <=
- [RFC v2 08/14] core/irq: add qemu_irq_remove_intercept interface, Heyi Guo, 2019/11/05
- [RFC v2 10/14] arm/sdei: add support to register interrupt bind notifier, Heyi Guo, 2019/11/05
- [RFC v2 14/14] virt/acpi: add SDEI table if SDEI is enabled, Heyi Guo, 2019/11/05
- [RFC v2 01/14] update-linux-headers.sh: import linux/arm_sdei.h to standard-headers, Heyi Guo, 2019/11/05
- [RFC v2 09/14] arm/sdei: override qemu_irq handler when binding interrupt, Heyi Guo, 2019/11/05
- [RFC v2 12/14] arm/sdei: add stub to fix build failure when SDEI is not enabled, Heyi Guo, 2019/11/05
- [RFC v2 02/14] standard-headers: import arm_sdei.h, Heyi Guo, 2019/11/05