After KVM commit 8a3caa6d74597c2a083f7c87f866891a0b12540b, kvm-kmod is broken in weird ways (for me it breaks every other time kvm is loaded, but only with ept=0...).
The reason is that, after this commit, empty_zero_page is expected to be page-aligned, but the kvm-kmod compatibility shim isn't. empty_zero_page has been exported since v2.6.25: commit 8232fd625217dc641ed05dd238a8bb5c82828082 Author: Theodore Ts'o <[email protected]> Date: Mon Nov 26 20:42:19 2007 +0100 x86: export the symbol empty_zero_page on the 32-bit x86 architecture The latest KVM driver wants to use the empty_zero_page symbol, and it's not exported in 32-bit x86 (although it is exported by x86_64, s390, and uml architectures). Signed-off-by: "Theodore Ts'o" <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> so the compatibility shim should probably just be dropped. Signed-off-by: Paolo Bonzini <[email protected]> --- diff --git a/external-module-compat-comm.h b/external-module-compat-comm.h index 34fb320..580aa9f 100644 --- a/external-module-compat-comm.h +++ b/external-module-compat-comm.h @@ -180,18 +180,6 @@ void kvm_smp_send_reschedule(int cpu); #endif -/* empty_zero_page isn't exported in all kernels */ -#include <asm/pgtable.h> - -#define empty_zero_page kvm_empty_zero_page - -static char empty_zero_page[PAGE_SIZE]; - -static inline void blahblah(void) -{ - (void)empty_zero_page[0]; -} - /* __mmdrop() is not exported before 2.6.25 */ #include <linux/sched.h> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
