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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:18:31 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:42:15 +0300
commit437fd90c0250dee670290f9b714253671a990160 (patch)
treeb871786c360704244a07411c69fb58da9ead4a06 /qemu/target-arm/kvm.c
parent5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff)
These changes are the raw update to qemu-2.6.
Collission happened in the following patches: migration: do cleanup operation after completion(738df5b9) Bug fix.(1750c932f86) kvmclock: add a new function to update env->tsc.(b52baab2) The code provided by the patches was already in the upstreamed version. Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/target-arm/kvm.c')
-rw-r--r--qemu/target-arm/kvm.c109
1 files changed, 63 insertions, 46 deletions
diff --git a/qemu/target-arm/kvm.c b/qemu/target-arm/kvm.c
index b27854208..36710320f 100644
--- a/qemu/target-arm/kvm.c
+++ b/qemu/target-arm/kvm.c
@@ -8,8 +8,7 @@
*
*/
-#include <stdio.h>
-#include <sys/types.h>
+#include "qemu/osdep.h"
#include <sys/ioctl.h>
#include <sys/mman.h>
@@ -17,6 +16,7 @@
#include "qemu-common.h"
#include "qemu/timer.h"
+#include "qemu/error-report.h"
#include "sysemu/sysemu.h"
#include "sysemu/kvm.h"
#include "kvm_arm.h"
@@ -24,6 +24,7 @@
#include "internals.h"
#include "hw/arm/arm.h"
#include "exec/memattrs.h"
+#include "hw/boards.h"
const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
KVM_CAP_LAST_INFO
@@ -61,13 +62,18 @@ bool kvm_arm_create_scratch_host_vcpu(const uint32_t *cpus_to_try,
goto err;
}
+ if (!init) {
+ /* Caller doesn't want the VCPU to be initialized, so skip it */
+ goto finish;
+ }
+
ret = ioctl(vmfd, KVM_ARM_PREFERRED_TARGET, init);
if (ret >= 0) {
ret = ioctl(cpufd, KVM_ARM_VCPU_INIT, init);
if (ret < 0) {
goto err;
}
- } else {
+ } else if (cpus_to_try) {
/* Old kernel which doesn't know about the
* PREFERRED_TARGET ioctl: we know it will only support
* creating one kind of guest CPU which is its preferred
@@ -84,8 +90,15 @@ bool kvm_arm_create_scratch_host_vcpu(const uint32_t *cpus_to_try,
if (ret < 0) {
goto err;
}
+ } else {
+ /* Treat a NULL cpus_to_try argument the same as an empty
+ * list, which means we will fail the call since this must
+ * be an old kernel which doesn't support PREFERRED_TARGET.
+ */
+ goto err;
}
+finish:
fdarray[0] = kvmfd;
fdarray[1] = vmfd;
fdarray[2] = cpufd;
@@ -516,9 +529,23 @@ MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run)
return MEMTXATTRS_UNSPECIFIED;
}
+
int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
{
- return 0;
+ int ret = 0;
+
+ switch (run->exit_reason) {
+ case KVM_EXIT_DEBUG:
+ if (kvm_arm_handle_debug(cs, &run->debug.arch)) {
+ ret = EXCP_DEBUG;
+ } /* otherwise return to guest */
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP, "%s: un-handled exit reason %d\n",
+ __func__, run->exit_reason);
+ break;
+ }
+ return ret;
}
bool kvm_arch_stop_on_emulation_error(CPUState *cs)
@@ -541,66 +568,56 @@ int kvm_arch_on_sigbus(int code, void *addr)
return 1;
}
+/* The #ifdef protections are until 32bit headers are imported and can
+ * be removed once both 32 and 64 bit reach feature parity.
+ */
void kvm_arch_update_guest_debug(CPUState *cs, struct kvm_guest_debug *dbg)
{
- qemu_log_mask(LOG_UNIMP, "%s: not implemented\n", __func__);
-}
-
-int kvm_arch_insert_sw_breakpoint(CPUState *cs,
- struct kvm_sw_breakpoint *bp)
-{
- qemu_log_mask(LOG_UNIMP, "%s: not implemented\n", __func__);
- return -EINVAL;
-}
-
-int kvm_arch_insert_hw_breakpoint(target_ulong addr,
- target_ulong len, int type)
-{
- qemu_log_mask(LOG_UNIMP, "%s: not implemented\n", __func__);
- return -EINVAL;
-}
-
-int kvm_arch_remove_hw_breakpoint(target_ulong addr,
- target_ulong len, int type)
-{
- qemu_log_mask(LOG_UNIMP, "%s: not implemented\n", __func__);
- return -EINVAL;
-}
-
-int kvm_arch_remove_sw_breakpoint(CPUState *cs,
- struct kvm_sw_breakpoint *bp)
-{
- qemu_log_mask(LOG_UNIMP, "%s: not implemented\n", __func__);
- return -EINVAL;
-}
-
-void kvm_arch_remove_all_hw_breakpoints(void)
-{
- qemu_log_mask(LOG_UNIMP, "%s: not implemented\n", __func__);
+#ifdef KVM_GUESTDBG_USE_SW_BP
+ if (kvm_sw_breakpoints_active(cs)) {
+ dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP;
+ }
+#endif
+#ifdef KVM_GUESTDBG_USE_HW
+ if (kvm_arm_hw_debug_active(cs)) {
+ dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW;
+ kvm_arm_copy_hw_debug_data(&dbg->arch);
+ }
+#endif
}
void kvm_arch_init_irq_routing(KVMState *s)
{
}
-int kvm_arch_irqchip_create(KVMState *s)
+int kvm_arch_irqchip_create(MachineState *ms, KVMState *s)
{
- int ret;
+ if (machine_kernel_irqchip_split(ms)) {
+ perror("-machine kernel_irqchip=split is not supported on ARM.");
+ exit(1);
+ }
/* If we can create the VGIC using the newer device control API, we
* let the device do this when it initializes itself, otherwise we
* fall back to the old API */
+ return kvm_check_extension(s, KVM_CAP_DEVICE_CTRL);
+}
- ret = kvm_create_device(s, KVM_DEV_TYPE_ARM_VGIC_V2, true);
- if (ret == 0) {
- return 1;
+int kvm_arm_vgic_probe(void)
+{
+ if (kvm_create_device(kvm_state,
+ KVM_DEV_TYPE_ARM_VGIC_V3, true) == 0) {
+ return 3;
+ } else if (kvm_create_device(kvm_state,
+ KVM_DEV_TYPE_ARM_VGIC_V2, true) == 0) {
+ return 2;
+ } else {
+ return 0;
}
-
- return 0;
}
int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
- uint64_t address, uint32_t data)
+ uint64_t address, uint32_t data, PCIDevice *dev)
{
return 0;
}