[SeaBIOS] [PATCH 00/11] Relocate init code to high memory

[Gleb Natapov]

On Wed, Sep 15, 2010 at 10:31:36PM -0400, Kevin O'Connor wrote:
> Unfortunately, both qemu and kvm don't appear to have a reliable way
> to hard-reboot - normal reboots don't reset the 0xc0000-0xfffff
> memory.  I've worked around this on qemu by manually resetting that
> memory.  However, kvm doesn't keep a pristine copy of the bios at
> 0xffff0000.  Until this is fixed, this patch series will cause a
> soft-reboot on kvm to result in a shutdown instead of a reboot.
> 

Can you check if with this patch kvm keeps pristine copy of the bios at
0xffff0000?

diff --git a/hw/piix_pci.c b/hw/piix_pci.c
index 933ad86..f224ce7 100644
--- a/hw/piix_pci.c
+++ b/hw/piix_pci.c
@@ -99,10 +99,6 @@ static void i440fx_update_memory_mappings(PCII440FXState *d)
     int i, r;
     uint32_t smram, addr;
 
-    if (kvm_enabled()) {
-        /* FIXME: Support remappings and protection changes. */
-        return;
-    }
     update_pam(d, 0xf0000, 0x100000, (d->dev.config[I440FX_PAM] >> 4) & 3);
     for(i = 0; i < 12; i++) {
         r = (d->dev.config[(i >> 1) + (I440FX_PAM + 1)] >> ((i & 1) * 4)) & 3;
--
			Gleb.