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hv: save registers on exception

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This patch is for crashmode/ramdump. when exception occur:
1) save registers;
2) flush cache

Signed-off-by: zhouji3x <jianfengx.zhou@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
zhouji3x 2018-05-30 09:41:39 +08:00 committed by lijinxia
parent 977c4b20b5
commit ad2d855302
1 changed files with 7 additions and 0 deletions
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7
hypervisor/debug/dump.c
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@ -44,6 +44,9 @@ static const char *const excp_names[] = {
[31] = "Intel Reserved" [31] = "Intel Reserved"
}; };
/* Global variable for save registers on exception */
struct intr_excp_ctx *crash_ctx;
static void dump_guest_reg(struct vcpu *vcpu) static void dump_guest_reg(struct vcpu *vcpu)
{ {
struct run_context *cur_context = struct run_context *cur_context =
@ -283,4 +286,8 @@ void dump_exception(struct intr_excp_ctx *ctx, uint32_t cpu_id)
show_host_call_trace(ctx->rsp, ctx->rbp, cpu_id); show_host_call_trace(ctx->rsp, ctx->rbp, cpu_id);
/* Dump guest context */ /* Dump guest context */
dump_guest_context(cpu_id); dump_guest_context(cpu_id);
/* Save registers*/
crash_ctx = ctx;
CACHE_FLUSH_INVALIDATE_ALL();
} }