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spapr: Enable in-kernel H_SET_MODE handling

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For setting debug watchpoints, sPAPR guests use H_SET_MODE hypercall.
The existing QEMU H_SET_MODE handler does not support this but
the KVM handler in HV KVM does. However it is not enabled.

This enables the in-kernel H_SET_MODE handler which handles:
- Completed Instruction Address Breakpoint Register
- Watch point 0 registers.

The rest is still handled in QEMU.

Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Alexey Kardashevskiy 2015-09-08 11:25:13 +10:00 committed by David Gibson
parent 22419c2a90
commit ef9971dd69
3 changed files with 11 additions and 0 deletions
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1
hw/ppc/spapr.c
View File

@ -1546,6 +1546,7 @@ static void ppc_spapr_init(MachineState *machine)
if (kvm_enabled()) {
/* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */
kvmppc_enable_logical_ci_hcalls();
kvmppc_enable_set_mode_hcall();
}
/* allocate RAM */

5
target-ppc/kvm.c
View File

@ -1953,6 +1953,11 @@ void kvmppc_enable_logical_ci_hcalls(void)
kvmppc_enable_hcall(kvm_state, H_LOGICAL_CI_STORE);
}
void kvmppc_enable_set_mode_hcall(void)
{
kvmppc_enable_hcall(kvm_state, H_SET_MODE);
}
void kvmppc_set_papr(PowerPCCPU *cpu)
{
CPUState *cs = CPU(cpu);

5
target-ppc/kvm_ppc.h
View File

@ -23,6 +23,7 @@ int kvmppc_get_hasidle(CPUPPCState *env);
int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len);
int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level);
void kvmppc_enable_logical_ci_hcalls(void);
void kvmppc_enable_set_mode_hcall(void);
void kvmppc_set_papr(PowerPCCPU *cpu);
int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version);
void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
@ -110,6 +111,10 @@ static inline void kvmppc_enable_logical_ci_hcalls(void)
{
}
static inline void kvmppc_enable_set_mode_hcall(void)
{
}
static inline void kvmppc_set_papr(PowerPCCPU *cpu)
{
}