Hi, On 11/09/2018 17:48, Amit Singh Tomar wrote: > This patch adds image size and flags to XEN image header. It uses > those fields according to the updated Linux kernel image definition. > > With this patch bootloader can now place XEN image anywhere in system > RAM at 2MB aligned address without to worry about relocation. > For instance, it fixes the XEN boot on Amlogic SoC where bootloader(U-BOOT) > always relocates the XEN image to an address range reserved for firmware data. > > Signed-off-by: Amit Singh Tomar <[email protected]>
Thanks, looks good to me now: Reviewed-by: Andre Przywara <[email protected]> Cheers, Andre. > --- > Changes since v2: > * Undo changes in assembler.h(as suggested by Andre) > Changes since v1: > * Updated commit message > * Removed endianess code > --- > xen/arch/arm/arm64/head.S | 11 +++++++++-- > 1 file changed, 9 insertions(+), 2 deletions(-) > > diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S > index d63734f..ef87b5c 100644 > --- a/xen/arch/arm/arm64/head.S > +++ b/xen/arch/arm/arm64/head.S > @@ -32,6 +32,13 @@ > #define PT_DEV 0xe71 /* nG=1 AF=1 SH=10 AP=01 NS=1 ATTR=100 T=0 P=1 */ > #define PT_DEV_L3 0xe73 /* nG=1 AF=1 SH=10 AP=01 NS=1 ATTR=100 T=1 P=1 */ > > +#define __HEAD_FLAG_PAGE_SIZE ((PAGE_SHIFT - 10) / 2) > + > +#define __HEAD_FLAG_PHYS_BASE 1 > + > +#define __HEAD_FLAGS ((__HEAD_FLAG_PAGE_SIZE << 1) | \ > + (__HEAD_FLAG_PHYS_BASE << 3)) > + > #if (defined (CONFIG_EARLY_PRINTK)) && (defined (EARLY_PRINTK_INC)) > #include EARLY_PRINTK_INC > #endif > @@ -120,8 +127,8 @@ efi_head: > add x13, x18, #0x16 > b real_start /* branch to kernel start */ > .quad 0 /* Image load offset from start of RAM > */ > - .quad 0 /* reserved */ > - .quad 0 /* reserved */ > + .quad _end - start /* Effective size of kernel image, > little-endian */ > + .quad __HEAD_FLAGS /* Informative flags, little-endian */ > .quad 0 /* reserved */ > .quad 0 /* reserved */ > .quad 0 /* reserved */ > _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
