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| author | Keir Fraser <keir@xen.org> | 2010-12-15 10:21:05 +0000 |
|---|---|---|
| committer | Keir Fraser <keir@xen.org> | 2010-12-15 10:21:05 +0000 |
| commit | e03284b00e3690bc96e0092dfc248bb6e5290ee4 (patch) | |
| tree | 10bf3dbffd9d507015ca0a0b7ccce3762650de30 /xen/arch/x86/hvm/hpet.c | |
| parent | 16f40060bcea71509daef897ecb80e91cfbaef99 (diff) | |
| download | xen-e03284b00e3690bc96e0092dfc248bb6e5290ee4.tar.gz xen-e03284b00e3690bc96e0092dfc248bb6e5290ee4.tar.bz2 xen-e03284b00e3690bc96e0092dfc248bb6e5290ee4.zip | |
hvm save: Introduce hvm_load_entry_zeroextend().
In certain cases this will allow us to load old HVM save images where
an HVM saved chunk has subsequently been extended with new
fields. Rather than fail to load the chunk, we can pad the extended
structure with zeroes, if the caller knows how to handle that.
Signed-off-by: Keir Fraser <keir@xen.org>
Acked-by: Tim Deegan <Tim.Deegan@citrix.com>
Diffstat (limited to 'xen/arch/x86/hvm/hpet.c')
| -rw-r--r-- | xen/arch/x86/hvm/hpet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/arch/x86/hvm/hpet.c b/xen/arch/x86/hvm/hpet.c index 25acad8e3e..fecfff253e 100644 --- a/xen/arch/x86/hvm/hpet.c +++ b/xen/arch/x86/hvm/hpet.c @@ -546,7 +546,7 @@ static int hpet_load(struct domain *d, hvm_domain_context_t *h) spin_lock(&hp->lock); /* Reload the HPET registers */ - if ( _hvm_check_entry(h, HVM_SAVE_CODE(HPET), HVM_SAVE_LENGTH(HPET)) ) + if ( _hvm_check_entry(h, HVM_SAVE_CODE(HPET), HVM_SAVE_LENGTH(HPET), 1) ) { spin_unlock(&hp->lock); return -EINVAL; |