Jan Beulich 467f98a0e0 revert "hvmloader: PA range 0xfc000000-0xffffffff should be UC" ...

This reverts commit c22bd567ce.

While its description is correct from an abstract or real hardware pov,
the range is special inside HVM guests. The range being UC in particular
gets in the way of OVMF, which places itself at [FFE00000,FFFFFFFF].
While this is benign to epte_get_entry_emt() as long as the IOMMU isn't
enabled for a guest, it becomes a very noticable problem otherwise: It
takes about half a minute for OVMF to decompress itself into its
designated address range.

And even beyond OVMF there's no reason to have e.g. the ACPI memory
range marked UC.

Fixes: c22bd567ce ("hvmloader: PA range 0xfc000000-0xffffffff should be UC")
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
master commit: ea187c0b7a
master date: 2021-12-17 08:56:15 +0100

2022-01-07 08:15:40 +01:00

..

console

tools: drop all deprecated usages of xs_*_open() and friends in tools

2020-10-08 12:47:59 +00:00

debugger

tools/gdbsx: Use right path for privcmd on NetBSD

2021-01-18 19:07:37 +00:00

examples

examples: Add PVH example to config example list

2020-12-15 15:51:58 +00:00

firmware

revert "hvmloader: PA range 0xfc000000-0xffffffff should be UC"

2022-01-07 08:15:40 +01:00

flask

xen/xsm: Drop xsm_hvm_param_nested()

2020-10-06 12:28:37 +01:00

fuzz

x86emul: fix test harness and fuzzer build dependencies

2019-09-10 16:35:09 +02:00

golang

tools/[lib]xl: Add vmtrace_buf_size parameter

2021-02-05 17:37:27 +00:00

helpers

tools/helpers: fix Arm build by excluding init-xenstore-domain

2020-10-26 11:04:59 +00:00

hotplug

tools/hotplug: Add a qemu-ifup script on NetBSD

2021-02-04 21:26:41 +00:00

include

libxencall: introduce variant of xencall2() returning long

2021-08-19 17:33:40 +01:00

libacpi

tools/libacpi: Use 64-byte alignment for FACS

2021-10-15 11:02:27 +02:00

libfsimage

tools: bump library version numbers

2020-08-14 20:21:25 +00:00

libs

x86/cpuid: Fix TSXLDTRK definition

2022-01-07 08:15:05 +01:00

misc

x86/cpuid: Fix TSXLDTRK definition

2022-01-07 08:15:05 +01:00

ocaml

x86/msr: introduce an option for compatible MSR behavior selection

2021-03-12 08:59:56 +01:00

pygrub

tools/python: Pass linker to Python build process

2020-10-16 13:25:35 +00:00

python

tools/python: fix Python3.4 TypeError in format string

2021-07-15 11:55:50 +01:00

tests

x86: make hypervisor build with gcc11

2021-06-04 14:47:36 +02:00

vchan

tools: split libxenvchan into new tools/libs/vchan directory

2020-09-09 10:57:25 +00:00

xcutils

tools/xcutils: use official headers in readnotes

2020-09-09 10:57:25 +00:00

xenmon

tools: Use INSTALL_PYTHON_PROG

2020-05-19 11:40:53 +01:00

xenpaging

tools/xenpaging: include errno.h

2021-01-18 18:58:20 +00:00

xenpmd

xenpmd.c: Remove hard tab

2021-02-01 15:18:36 +00:00

xenstore

tools/xenstore: Check the format printf for xprintf() and barf{,_perror}()

2021-03-11 09:47:02 +00:00

xentop

tools: split libxenstat into new tools/libs/stat directory

2020-09-09 10:57:25 +00:00

xentrace

Fix error: array subscript has type 'char'

2021-01-28 16:36:48 +00:00

xl

x86/msr: introduce an option for compatible MSR behavior selection

2021-03-12 08:59:56 +01:00

config.h.in

tools: rerun autoconf again

2021-02-10 15:30:59 +00:00

configure

tools: Check for abi-dumper in ./configure

2021-02-19 17:10:33 +00:00

configure.ac

tools: Check for abi-dumper in ./configure

2021-02-19 17:10:33 +00:00

cross-install

cross-install: Only apply in tools directory, and automatically wrap $INSTALL.

2008-08-30 08:36:02 +01:00

Makefile

tools/xenbackendd: Remove xenbackendd

2021-01-18 18:58:20 +00:00

Rules.mk

4.15: Turn off debug on the stable branch

2021-03-24 16:31:32 +00:00