Konrad Rzeszutek Wilk
2013-Dec-13 02:10 UTC
[PATCH V10 10/14] xen/pvh: specify xen features strings cleanly for PVH
From: Mukesh Rathor <mukesh.rathor@oracle.com> Use .ascii and .asciz to define xen feature string. Note, the PVH string must be in a single line (not multiple lines with \) to keep the assembler from putting null char after each string before \. Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> --- arch/x86/xen/xen-head.S | 11 +++++------ 1 files changed, 5 insertions(+), 6 deletions(-) diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S index 1a6bca1..45226cb 100644 --- a/arch/x86/xen/xen-head.S +++ b/arch/x86/xen/xen-head.S @@ -14,12 +14,11 @@ #include <asm/xen/interface.h> #ifdef CONFIG_XEN_X86_PVH -#define FEATURES_PVH "|writable_descriptor_tables" \ - "|auto_translated_physmap" \ - "|supervisor_mode_kernel" \ - "|hvm_callback_vector" + +#define PVH_FEATURES_STR "|writable_descriptor_tables|auto_translated_physmap|supervisor_mode_kernel|hvm_callback_vector" + #else -#define FEATURES_PVH /* Not supported */ +#define PVH_FEATURES_STR "" #endif __INIT @@ -104,7 +103,7 @@ NEXT_HYPERCALL(arch_6) #endif ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, _ASM_PTR startup_xen) ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, _ASM_PTR hypercall_page) - ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz "!writable_page_tables|pae_pgdir_above_4gb"FEATURES_PVH) + ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .ascii "!writable_page_tables|pae_pgdir_above_4gb"; .asciz PVH_FEATURES_STR); ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes") ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic") ELFNOTE(Xen, XEN_ELFNOTE_L1_MFN_VALID, -- 1.7.7.6