Plug in the core handler for hypercalls, so we can start implementing
the more interesting stuff.
Based on patches by Antonios Motakis
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
hypervisor/arch/arm64/traps.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/hypervisor/arch/arm64/traps.c b/hypervisor/arch/arm64/traps.c
index 3aaaba8..3523b7d 100644
--- a/hypervisor/arch/arm64/traps.c
+++ b/hypervisor/arch/arm64/traps.c
@@ -45,6 +45,16 @@ static int handle_smc(struct trap_context *ctx)
return TRAP_HANDLED;
}
+static int handle_hvc(struct trap_context *ctx)
+{
+ unsigned long *regs = ctx->regs;
+ unsigned long code = regs[0];
+
+ regs[0] = hypercall(code, regs[1], regs[2]);
+
+ return TRAP_HANDLED;
+}
+
static void dump_regs(struct trap_context *ctx)
{
unsigned char i;
@@ -132,6 +142,10 @@ static void arch_handle_trap(struct per_cpu *cpu_data,
ret = handle_smc(&ctx);
break;
+ case ESR_EC_HVC64:
+ ret = handle_hvc(&ctx);
+ break;
+
default:
ret = TRAP_UNHANDLED;
}
--
2.1.4
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