[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 1 of 3] xenpaging: Add a check to Xen for EPT
# HG changeset patch # User Patrick Colp <pjcolp@xxxxxxxxx> # Date 1280265109 25200 # Node ID 6cb61775657f6ea362b3ff45ed22e67b00ad3ea5 # Parent ac7e4c6ec6c7494e4046da92aa8f62f6c1371438 xenpaging: Add a check to Xen for EPT. There isn't seem to be a way to directly check for EPT, so instead check for HAP and an Intel processor. If EPT isn't enabled, then return an error to the tool. Signed-off-by: Patrick Colp <pjcolp@xxxxxxxxx> diff -r ac7e4c6ec6c7 -r 6cb61775657f xen/arch/x86/mm/mem_event.c --- a/xen/arch/x86/mm/mem_event.c Fri Jul 23 19:23:49 2010 +0100 +++ b/xen/arch/x86/mm/mem_event.c Tue Jul 27 14:11:49 2010 -0700 @@ -21,6 +21,7 @@ */ +#include <asm/domain.h> #include <xen/event.h> #include <asm/p2m.h> #include <asm/mem_event.h> @@ -225,6 +226,12 @@ mfn_t ring_mfn; mfn_t shared_mfn; + /* Currently only EPT is supported */ + rc = -ENODEV; + if ( !(hap_enabled(d) && + (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)) ) + break; + /* Get MFN of ring page */ guest_get_eff_l1e(v, ring_addr, &l1e); gfn = l1e_get_pfn(l1e); _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |