On Wed, Jul 22, 2009 at 04:50:28PM -0300, Marcelo Tosatti wrote:
> Gleb,
>
> Can you please review this to make sure the handling in acpi.c
> is correct and complete?
>
The handling in acpi.c is the same except this bit:
case 0: {
cpu_outb(0, 0xb3, 0);
break;
But this doesn't make sense according to a spec and if it is needed
(which I doubt) it should be handled in acpi.c too.
> On Tue, Jul 21, 2009 at 06:13:11PM -0400, Glauber Costa wrote:
> > As example of what was already done with inb.
> > This is a little bit more tricky, because of SMM, but those
> > bits are handled directly in apic anyway.
> >
> > Signed-off-by: Glauber Costa <glommer@xxxxxxxxxx>
> > ---
> > qemu-kvm.c | 60 +++---------------------------------------------------------
> > 1 files changed, 3 insertions(+), 57 deletions(-)
> >
> > diff --git a/qemu-kvm.c b/qemu-kvm.c
> > index cef522d..0724c28 100644
> > --- a/qemu-kvm.c
> > +++ b/qemu-kvm.c
> > @@ -95,55 +95,6 @@ static int kvm_debug(void *opaque, void *data,
> > }
> > #endif
> >
> > -#define PM_IO_BASE 0xb000
> > -
> > -static int kvm_outb(void *opaque, uint16_t addr, uint8_t data)
> > -{
> > - if (addr == 0xb2) {
> > - switch (data) {
> > - case 0: {
> > - cpu_outb(0, 0xb3, 0);
> > - break;
> > - }
> > - case 0xf0: {
> > - unsigned x;
> > -
> > - /* enable acpi */
> > - x = cpu_inw(0, PM_IO_BASE + 4);
> > - x &= ~1;
> > - cpu_outw(0, PM_IO_BASE + 4, x);
> > - break;
> > - }
> > - case 0xf1: {
> > - unsigned x;
> > -
> > - /* enable acpi */
> > - x = cpu_inw(0, PM_IO_BASE + 4);
> > - x |= 1;
> > - cpu_outw(0, PM_IO_BASE + 4, x);
> > - break;
> > - }
> > - default:
> > - break;
> > - }
> > - return 0;
> > - }
> > - cpu_outb(0, addr, data);
> > - return 0;
> > -}
> > -
> > -static int kvm_outw(void *opaque, uint16_t addr, uint16_t data)
> > -{
> > - cpu_outw(0, addr, data);
> > - return 0;
> > -}
> > -
> > -static int kvm_outl(void *opaque, uint16_t addr, uint32_t data)
> > -{
> > - cpu_outl(0, addr, data);
> > - return 0;
> > -}
> > -
> > int kvm_mmio_read(void *opaque, uint64_t addr, uint8_t *data, int len)
> > {
> > cpu_physical_memory_rw(addr, data, len, 0);
> > @@ -825,14 +776,12 @@ static int handle_io(kvm_vcpu_context_t vcpu)
> > struct kvm_run *run = vcpu->run;
> > kvm_context_t kvm = vcpu->kvm;
> > uint16_t addr = run->io.port;
> > - int r;
> > int i;
> > void *p = (void *)run + run->io.data_offset;
> >
> > for (i = 0; i < run->io.count; ++i) {
> > switch (run->io.direction) {
> > case KVM_EXIT_IO_IN:
> > - r = 0;
> > switch (run->io.size) {
> > case 1:
> > *(uint8_t *)p = cpu_inb(kvm->opaque, addr);
> > @@ -851,16 +800,13 @@ static int handle_io(kvm_vcpu_context_t vcpu)
> > case KVM_EXIT_IO_OUT:
> > switch (run->io.size) {
> > case 1:
> > - r = kvm_outb(kvm->opaque, addr,
> > - *(uint8_t *)p);
> > + cpu_outb(kvm->opaque, addr, *(uint8_t *)p);
> > break;
> > case 2:
> > - r = kvm_outw(kvm->opaque, addr,
> > - *(uint16_t *)p);
> > + cpu_outw(kvm->opaque, addr, *(uint16_t *)p);
> > break;
> > case 4:
> > - r = kvm_outl(kvm->opaque, addr,
> > - *(uint32_t *)p);
> > + cpu_outl(kvm->opaque, addr, *(uint32_t *)p);
> > break;
> > default:
> > fprintf(stderr, "bad I/O size %d\n", run->io.size);
> > --
> > 1.6.2.2
> >
> > --
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--
Gleb.
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