1 files changed, 0 insertions, 111 deletions

diff --git a/recipes-extended/xen/files/0001-x86-make-hypervisor-build-with-gcc11.patch b/recipes-extended/xen/files/0001-x86-make-hypervisor-build-with-gcc11.patch
deleted file mode 100644
index 72592c4b..00000000
--- a/recipes-extended/xen/files/0001-x86-make-hypervisor-build-with-gcc11.patch
+++ /dev/null
@@ -1,111 +0,0 @@
-From 722f59d38c710a940ab05e542a83020eb5546dea Mon Sep 17 00:00:00 2001
-From: Jan Beulich <jbeulich@suse.com>
-Date: Thu, 27 May 2021 14:40:29 +0200
-Subject: [PATCH] x86: make hypervisor build with gcc11
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Gcc 11 looks to make incorrect assumptions about valid ranges that
-pointers may be used for addressing when they are derived from e.g. a
-plain constant. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100680.
-
-Utilize RELOC_HIDE() to work around the issue, which for x86 manifests
-in at least
-- mpparse.c:efi_check_config(),
-- tboot.c:tboot_probe(),
-- tboot.c:tboot_gen_frametable_integrity(),
-- x86_emulate.c:x86_emulate() (at -O2 only).
-The last case is particularly odd not just because it only triggers at
-higher optimization levels, but also because it only affects one of at
-least three similar constructs. Various "note" diagnostics claim the
-valid index range to be [0, 2⁶³-1].
-
-Signed-off-by: Jan Beulich <jbeulich@suse.com>
-Tested-by: Jason Andryuk <jandryuk@gmail.com>
-Acked-by: Roger Pau Monné <roger.pau@citrix.com>
----
- tools/tests/x86_emulator/x86-emulate.c | 7 +++++++
- xen/arch/x86/x86_emulate/x86_emulate.c | 2 +-
- xen/include/asm-x86/fixmap.h           | 2 +-
- xen/include/xen/compiler.h             | 6 ++++++
- xen/include/xen/pdx.h                  | 2 +-
- 5 files changed, 16 insertions(+), 3 deletions(-)
-
-diff --git a/tools/tests/x86_emulator/x86-emulate.c b/tools/tests/x86_emulator/x86-emulate.c
-index 07f892dbbb..ea286d6ad8 100644
---- a/tools/tests/x86_emulator/x86-emulate.c
-+++ b/tools/tests/x86_emulator/x86-emulate.c
-@@ -8,6 +8,13 @@
- 
- #define ERR_PTR(val) NULL
- 
-+/* See gcc bug 100680, but here don't bother making this version dependent. */
-+#define gcc11_wrap(x) ({                  \
-+    unsigned long x_;                     \
-+    __asm__ ( "" : "=g" (x_) : "0" (x) ); \
-+    (typeof(x))x_;                        \
-+})
-+
- #define cpu_has_amd_erratum(nr) 0
- #define cpu_has_mpx false
- #define read_bndcfgu() 0
-diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c
-index c25d88d0d8..31fdec030c 100644
---- a/xen/arch/x86/x86_emulate/x86_emulate.c
-+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
-@@ -726,7 +726,7 @@ union vex {
- #define copy_VEX(ptr, vex) ({ \
-     if ( !mode_64bit() ) \
-         (vex).reg |= 8; \
--    (ptr)[0 - PFX_BYTES] = ext < ext_8f08 ? 0xc4 : 0x8f; \
-+    gcc11_wrap(ptr)[0 - PFX_BYTES] = ext < ext_8f08 ? 0xc4 : 0x8f; \
-     (ptr)[1 - PFX_BYTES] = (vex).raw[0]; \
-     (ptr)[2 - PFX_BYTES] = (vex).raw[1]; \
-     container_of((ptr) + 1 - PFX_BYTES, typeof(vex), raw[0]); \
-diff --git a/xen/include/asm-x86/fixmap.h b/xen/include/asm-x86/fixmap.h
-index 0db314baeb..20746afd0a 100644
---- a/xen/include/asm-x86/fixmap.h
-+++ b/xen/include/asm-x86/fixmap.h
-@@ -78,7 +78,7 @@ extern void __set_fixmap(
- 
- #define clear_fixmap(idx) __set_fixmap(idx, 0, 0)
- 
--#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-+#define __fix_to_virt(x) gcc11_wrap(FIXADDR_TOP - ((x) << PAGE_SHIFT))
- #define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
- 
- #define fix_to_virt(x)   ((void *)__fix_to_virt(x))
-diff --git a/xen/include/xen/compiler.h b/xen/include/xen/compiler.h
-index 17cf00e1ec..696c7eb89e 100644
---- a/xen/include/xen/compiler.h
-+++ b/xen/include/xen/compiler.h
-@@ -140,6 +140,12 @@
-     __asm__ ("" : "=r"(__ptr) : "0"(ptr));      \
-     (typeof(ptr)) (__ptr + (off)); })
- 
-+#if CONFIG_GCC_VERSION >= 110000 /* See gcc bug 100680. */
-+# define gcc11_wrap(x) RELOC_HIDE(x, 0)
-+#else
-+# define gcc11_wrap(x) (x)
-+#endif
-+
- #ifdef __GCC_ASM_FLAG_OUTPUTS__
- # define ASM_FLAG_OUT(yes, no) yes
- #else
-diff --git a/xen/include/xen/pdx.h b/xen/include/xen/pdx.h
-index 770fadc06c..9fcfb0ce52 100644
---- a/xen/include/xen/pdx.h
-+++ b/xen/include/xen/pdx.h
-@@ -19,7 +19,7 @@ extern u64 pdx_region_mask(u64 base, u64 len);
- extern void set_pdx_range(unsigned long smfn, unsigned long emfn);
- 
- #define page_to_pdx(pg)  ((pg) - frame_table)
--#define pdx_to_page(pdx) (frame_table + (pdx))
-+#define pdx_to_page(pdx) gcc11_wrap(frame_table + (pdx))
- 
- bool __mfn_valid(unsigned long mfn);
- 
--- 
-2.25.1
-