xen/4.18: update to -tip

Bumping xen to version RELEASE-4.18.0-71-g4da8ca9cb9, which comprises the following commits:

    4da8ca9cb9 x86: protect conditional lock taking from speculative execution
    e107a8ece7 x86/mm: add speculation barriers to open coded locks
    9de8a52b0e locking: attempt to ensure lock wrappers are always inline
    5a13c81542 percpu-rwlock: introduce support for blocking speculation into critical regions
    e7f0f11c88 rwlock: introduce support for blocking speculation into critical regions
    1932973ac9 x86/spinlock: introduce support for blocking speculation into critical regions
    bdda600406 xen: Swap order of actions in the FREE*() macros
    908cbd1893 x86/spec-ctrl: Mitigation Register File Data Sampling
    fb85a8fc91 x86/spec-ctrl: VERW-handling adjustments
    b7205fc1cb x86/spec-ctrl: Rename VERW related options
    95dd34fdbe x86/spec-ctrl: Perform VERW flushing later in exit paths
    9f89ec65fb x86/vmx: Perform VERW flushing later in the VMExit path
    b91c253e81 x86: Resync intel-family.h from Linux
    fe1869a569 x86/entry: Introduce EFRAME_* constants
    a96d2d4355 x86/mm: fix detection of last L1 entry in modify_xen_mappings_lite()
    4c84fa6cb6 hvmloader/PCI: skip huge BARs in certain calculations
    fd7cb7a1d0 x86/cpu-policy: Allow for levelling of VERW side effects
    75221fb0f8 x86/altcall: always use a temporary parameter stashing variable
    267845a838 libxl: Fix segfault in device_model_spawn_outcome
    e9516b73e7 xen/livepatch: properly build the noapply and norevert tests
    d81bfc7ff8 xen/livepatch: fix norevert test attempt to open-code revert
    50a8f74df7 xen/livepatch: search for symbols in all loaded payloads
    5382a6a79c xen/livepatch: register livepatch regions when loaded
    7404c25efd x86/spec: do not print thunk option selection if not built-in
    09b9db0413 x86/spec: fix INDIRECT_THUNK option to only be set when build-enabled
    b7f9168878 x86/spec: print the built-in SPECULATIVE_HARDEN_* options
    57f1370536 xen/sched: Fix UB shift in compat_set_timer_op()
    3e383bb413 x86/HVM: hide SVM/VMX when their enabling is prohibited by firmware
    498b3624d0 xen/arm: Fix UBSAN failure in start_xen()
    58bb811510 x86: account for shadow stack in exception-from-stub recovery
    4d47dca20d x86/spec: fix BRANCH_HARDEN option to only be set when build-enabled
    19fd9ff998 x86/altcall: use a union as register type for function parameters on clang
    f6e5ab5fa7 xen/cmdline: fix printf format specifier in no_config_param()
    33a0368d3b xen/livepatch: fix norevert test hook setup typo
    a751d1321f x86emul: add missing EVEX.R' checks
    5fda826414 build: make sure build fails when running kconfig fails
    489c2b9ba1 libxl: Disable relocating memory for qemu-xen in stubdomain too
    006764b871 build: Replace `which` with `command -v`
    59e6ad6597 x86/HVM: tidy state on hvmemul_map_linear_addr()'s error path
    b51fd78aed x86/hvm: Fix fast singlestep state persistence
    16475909ba block-common: Fix same_vm for no targets
    fa9950a527 amd-vi: fix IVMD memory type checks
    184d723e7a tools/xentop: fix sorting bug for some columns
    b1fdd7d0e4 x86/ucode: Fix stability of the raw CPU Policy rescan
    295ab8060d x86/p2m-pt: fix off by one in entry check assert
    579a622eb4 lib{fdt,elf}: move lib{fdt,elf}-temp.o and their deps to $(targets)
    00550e808c x86/vmx: Disallow the use of inactivity states
    4cc0f88c42 x86/vmx: Fix IRQ handling for EXIT_REASON_INIT
    6ccf064b0c x86/intel: ensure Global Performance Counter Control is setup correctly
    b26c30a408 CirrusCI: drop FreeBSD 12
    62b3d7f8e4 x86/amd: Extend CPU erratum #1474 fix to more affected models
    c7ac596a57 VT-d: Fix "else" vs "#endif" misplacement
    637da04812 pci: fail device assignment if phantom functions cannot be assigned
    1792d1723b x86/x2apic: introduce a mixed physical/cluster mode
    a4f3f5a62c xen/arm: page: Avoid pointer overflow on cache clean & invalidate
    48eb9e9199 xen/sched: fix sched_move_domain()
    a56d598e13 Only compile the hypervisor with -Wdeclaration-after-statement
    25b7f9ed0f xen/domain: fix error path in domain_create()
    5ac87c8afd xen/sched: fix adding offline cpu to cpupool
    18f900b77b x86emul: avoid triggering event related assertions
    3af9d1cbb6 tools/xg: Fix potential memory leak in cpu policy getters/setters
    61d032e322 xen/x86: In x2APIC mode, derive LDR from APIC ID
    480168fcb3 livepatch: do not use .livepatch.funcs section to store internal state
    90a6d82175 x86/mem_sharing: Release domain if we are not able to enable memory sharing
    3f9390fea5 xen/sched: fix sched_move_domain()
    40bfa9dd57 x86/spec-ctrl: Add SRSO whitepaper URL
    fcb1016bbd x86/i8259: do not assume interrupts always target CPU0
    9e8edd4c75 x86/x2apic: remove usage of ACPI_FADT_APIC_CLUSTER
    880e06fdea x86/pv-shim: fix grant table operations for 32-bit guests
    52be29df79 x86/mem_sharing: add missing m2p entry when mapping shared_info page
    02f8d0adfb update Xen version to 4.18.1-pre
    d75f1e9b74 SUPPORT.md: Update release notes URL

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/recipes-extended/xen/xen_4.18.bb b/recipes-extended/xen/xen_4.18.bb
index 8da44559..2ad7704e 100644
--- a/recipes-extended/xen/xen_4.18.bb
+++ b/recipes-extended/xen/xen_4.18.bb
@@ -1,5 +1,5 @@
 # tag: RELEASE-4.18.0
-SRCREV ?= "d75f1e9b74314cea91ce435730d4e3539ecca77d"
+SRCREV ?= "4da8ca9cb9cfdb92c9dd09d5270ae16a3b2dbc89"
 
 XEN_REL ?= "4.18"
 XEN_BRANCH ?= "stable-4.18"