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hypervisor: passthru 0x64 port to SOS

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On ICL notebook, it uses legacy keyboard interface for the integrated
keyboard.

Signed-off-by: Zide Chen <zide.chen@intel.com>
This commit is contained in:
Zide Chen 2019-11-27 09:56:32 -08:00 committed by Zhao Yakui
parent b7cce16403
commit 07546bdc28
1 changed files with 22 additions and 11 deletions
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21
hypervisor/arch/x86/guest/vm_reset.c
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@ -120,14 +120,16 @@ static void reset_host(void)
/** /**
* @pre vcpu != NULL && vm != NULL * @pre vcpu != NULL && vm != NULL
*/ */
static bool handle_reset_reg_read(struct acrn_vm *vm, struct acrn_vcpu *vcpu, __unused uint16_t addr, static bool handle_reset_reg_read(struct acrn_vm *vm, struct acrn_vcpu *vcpu, uint16_t addr, size_t bytes)
__unused size_t bytes)
{ {
bool ret = true; bool ret = true;
if (is_postlaunched_vm(vm)) { if (is_postlaunched_vm(vm)) {
/* re-inject to DM */ /* re-inject to DM */
ret = false; ret = false;
} else {
if (is_sos_vm(vm) && (bytes == 1U) && (addr == 0x64)) {
vcpu->req.reqs.pio.value = (uint32_t)pio_read8(addr);
} else { } else {
/* /*
* - keyboard control/status register 0x64: ACRN doesn't expose kbd controller to the guest. * - keyboard control/status register 0x64: ACRN doesn't expose kbd controller to the guest.
@ -136,6 +138,7 @@ static bool handle_reset_reg_read(struct acrn_vm *vm, struct acrn_vcpu *vcpu, __
*/ */
vcpu->req.reqs.pio.value = ~0U; vcpu->req.reqs.pio.value = ~0U;
} }
}
return ret; return ret;
} }
@ -171,10 +174,18 @@ static bool handle_common_reset_reg_write(struct acrn_vm *vm, bool reset)
/** /**
* @pre vm != NULL * @pre vm != NULL
*/ */
static bool handle_kb_write(struct acrn_vm *vm, __unused uint16_t addr, size_t bytes, uint32_t val) static bool handle_kb_write(struct acrn_vm *vm, uint16_t addr, size_t bytes, uint32_t val)
{ {
/* ignore commands other than system reset */ bool ret = true;
return handle_common_reset_reg_write(vm, ((bytes == 1U) && (val == 0xfeU)));
/* passthru none reset commands. */
if (is_sos_vm(vm) && (val != 0xfe) && (bytes == 1U)) {
pio_write8((uint8_t)val, addr);
} else {
ret = handle_common_reset_reg_write(vm, ((bytes == 1U) && (val == 0xfeU)));
}
return ret;
} }
/* /*