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pseries: savevm support with KVM

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At present, the savevm / migration support for the pseries machine will not
work when KVM is enabled.  That's because KVM manages the guest's hash page
table in the host kernel, so qemu has no visibility of it.  This patch
fixes this by using new kernel interfaces to extract and reinsert the
guest's hash table during the migration process.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Message-id: 1374175984-8930-11-git-send-email-aliguori@us.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Alexey Kardashevskiy 2013-07-18 14:33:03 -05:00 • committed by Anthony Liguori
parent 1112cf94c8
commit e68cb8b4fa
4 changed files with 176 additions and 22 deletions
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1
include/hw/ppc/spapr.h
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@ -37,6 +37,7 @@ typedef struct sPAPREnvironment {
/* Migration state */
int htab_save_index;
bool htab_first_pass;
int htab_fd;
} sPAPREnvironment;
#define H_SUCCESS 0