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Boris Ostrovsky a5a18ae73b xen/pvh: Indicate XENFEAT_linux_rsdp_unrestricted to Xen 
Pre-4.17 kernels ignored start_info's rsdp_paddr pointer and instead
relied on finding RSDP in standard location in BIOS RO memory. This
has worked since that's where Xen used to place it.

However, with recent Xen change (commit 4a5733771e6f ("libxl: put RSDP
for PVH guest near 4GB")) it prefers to keep RSDP at a "non-standard"
address. Even though as of commit b17d9d1df3 ("x86/xen: Add pvh
specific rsdp address retrieval function") Linux is able to find RSDP,
for back-compatibility reasons we need to indicate to Xen that we can
handle this, an we do so by setting XENFEAT_linux_rsdp_unrestricted
flag in ELF notes.

(Also take this opportunity and sync features.h header file with Xen)

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
2018-04-10 09:22:22 -04:00
..
acpi xen/acpi: upload _PSD info for non Dom0 CPUs too 2018-03-21 08:29:13 -04:00
asm-generic bug.h: work around GCC PR82365 in BUG() 2018-02-21 15:35:43 -08:00
clocksource
crypto
drm drm/nouveau: prefer XBGR2101010 for addfb ioctl 2018-02-23 13:51:42 +01:00
dt-bindings MIPS changes for 4.16 2018-02-07 11:22:44 -08:00
keys
kvm KVM: arm/arm64: Reset mapped IRQs on VM reset 2018-03-14 18:29:14 +00:00
linux * PPC: Fix bug leading to lost IPIs and smp_call_function_many() 2018-03-18 11:23:12 -07:00
math-emu
media media: dvb: update buffer mmaped flags and frame counter 2018-02-23 11:44:08 -05:00
memory
misc powerpc updates for 4.16 2018-02-02 10:01:04 -08:00
net mlxsw: spectrum: Fix handling of resource_size_param 2018-02-28 12:32:36 -05:00
pcmcia
ras
rdma IB/uverbs: Use u64_to_user_ptr() not a union 2018-02-15 14:59:45 -07:00
scsi SCSI fixes on 20180306 2018-03-07 10:50:15 -08:00
soc ARC fixes for 4.16-rc4 2018-03-01 14:32:23 -08:00
sound Merge branch 'topic/fixes' into for-linus 2018-02-12 09:36:26 +01:00
target
trace Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-02-14 17:02:15 -08:00
uapi powerpc fixes for 4.16 #5 2018-03-09 09:33:48 -08:00
video fbdev changes for v4.16: 2018-02-07 13:10:43 -08:00
xen xen/pvh: Indicate XENFEAT_linux_rsdp_unrestricted to Xen 2018-04-10 09:22:22 -04:00