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| author | Keir Fraser <keir.fraser@citrix.com> | 2010-05-04 12:41:11 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2010-05-04 12:41:11 +0100 |
| commit | c499509ef2595a5daa8ef804168c94291e90ec48 (patch) | |
| tree | 04b6c42424014edaef67090c6987905f20b5ff0c /xen/include/public/xen.h | |
| parent | 283fec5d9ac814b489580c1c8d1069447454fe63 (diff) | |
| download | xen-c499509ef2595a5daa8ef804168c94291e90ec48.tar.gz xen-c499509ef2595a5daa8ef804168c94291e90ec48.tar.bz2 xen-c499509ef2595a5daa8ef804168c94291e90ec48.zip | |
x86: add support for domain-initiated global cache flush
Newer Linux' AGP code wants to flush caches on all CPUs under certain
circumstances. Since doing this on all vCPU-s of the domain in
question doesn't yield the intended effect, this needs to be done in
the hypervisor. Add a new MMUEXT operation for this.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Diffstat (limited to 'xen/include/public/xen.h')
| -rw-r--r-- | xen/include/public/xen.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/xen/include/public/xen.h b/xen/include/public/xen.h index 1a5e3e840c..b3a9056602 100644 --- a/xen/include/public/xen.h +++ b/xen/include/public/xen.h @@ -239,6 +239,10 @@ DEFINE_XEN_GUEST_HANDLE(xen_pfn_t); * * cmd: MMUEXT_FLUSH_CACHE * No additional arguments. Writes back and flushes cache contents. + * + * cmd: MMUEXT_FLUSH_CACHE_GLOBAL + * No additional arguments. Writes back and flushes cache contents + * on all CPUs in the system. * * cmd: MMUEXT_SET_LDT * linear_addr: Linear address of LDT base (NB. must be page-aligned). @@ -268,6 +272,7 @@ DEFINE_XEN_GUEST_HANDLE(xen_pfn_t); #define MMUEXT_NEW_USER_BASEPTR 15 #define MMUEXT_CLEAR_PAGE 16 #define MMUEXT_COPY_PAGE 17 +#define MMUEXT_FLUSH_CACHE_GLOBAL 18 #ifndef __ASSEMBLY__ struct mmuext_op { |