1 files changed, 0 insertions, 70 deletions

diff --git a/gitlab/issues/target_arm/host_missing/accel_TCG/998.toml b/gitlab/issues/target_arm/host_missing/accel_TCG/998.toml
deleted file mode 100644
index 3e10d3df..00000000
--- a/gitlab/issues/target_arm/host_missing/accel_TCG/998.toml
+++ /dev/null
@@ -1,70 +0,0 @@
-id = 998
-title = "AArch64: SCTLR_EL1.BT0 set incorrectly in user mode"
-state = "closed"
-created_at = "2022-04-22T15:22:46.821Z"
-closed_at = "2022-05-05T17:53:48.578Z"
-labels = ["Closed::Fixed", "accel: TCG", "linux-user", "target: arm"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/998"
-host-os = "Ubuntu 20.04"
-host-arch = "ARM"
-qemu-version = "v7.0.0-rc4"
-guest-os = "Fedora 34"
-guest-arch = "ARM"
-description = """PACIASP normally acts as a BTI landing pad, but not in every situation. When SCTLR_EL1.BT is set, PACIASP checks that the indirect branch originates from X16 or X17 when the indirect branch is taken from a BTI guarded area. Linux sets this bit, ideally QEMU-user should too. This sample program should crash with a SIGILL if QEMU is working correctly, otherwise it will crash with a SIGSEGV.
-
-    #include <stdint.h>
-    #include <stdlib.h>
-    #include <unistd.h>
-    #include <string.h>
-    #include <stdio.h>
-    #include <sys/mman.h>
-
-    // PACIASP is a valid BTI landing pad, but there are some conditions
-    // under Linux which sets SCTLR_ELx.BT0 = 1. In this mode, a branch
-    // onto a PACIASP landing pad is only valid if it originates from
-    // x16 or x17 (i.e. br x17 is OK, br x3 is not).
-    // More info on page D5-4851 of the Arm Architecture Reference Manual (ARM DDI 0487H.a).
-
-    // Sample function which starts with a paciasp instruction
-    // (comes from -mbranch-protection=pac-ret+leaf)
-    void indirect_fn(int i) {
-        // paciasp instruction inserted here - should crash with SIGILL here if everything's operating OK.
-        i = i+1;
-        // Can't access this function from the copied location, so will segfault.
-        fprintf(stderr, "reachable\\n");
-    }
-
-    int main(int argc, char **argv) {
-        // It's difficult to get a whole binary BTI compatible without the appropriate crtbegin etc
-        // so instead map a page and copy the sample function there.
-        void *e = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-        if (e == MAP_FAILED) {
-            return 1;
-        }
-        memcpy(e, (void*)indirect_fn, 64);
-        mprotect(e, getpagesize(), PROT_READ | PROT_EXEC | PROT_BTI);
-
-        // paciasp is a valid landing pad if the branch comes from an unprotected area,
-        // so to ensure that we're protected - assemble an intermediate shim that's also PROT_BTI.
-        void *f = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-        if (f == MAP_FAILED) {
-            return 1;
-        }
-        uint32_t *x = (uint32_t*)f;
-        x[0] = 0xd503245fuL; // bti c
-        x[1] = 0xd61f0060uL; // br x1 - n.b. must be BR
-        mprotect(f, getpagesize(), PROT_READ | PROT_EXEC | PROT_BTI);
-
-        // Jump to the shim
-        asm volatile (
-            "mov x3, %0\\n"
-            "mov x2, %1\\n"
-            "blr x2\\n"
-        : : "p"(e), "p"(f) : "x2", "x3");
-
-        // Execution should not reach here
-        return 1;
-    }"""
-reproduce = """1. Compile with `clang-12 -g --sysroot=/work/home/fedora-rootfs/fedora_aarch64 -o sample --target=aarch64-linux-gnu -mbranch-protection=pac-ret+leaf -march=armv8-a -O1 -g sample.c` or similar.
-2. Run with `../qemu/build/qemu-aarch64 --cpu max -L ~/fedora-rootfs/fedora_aarch64 sample`"""
-additional = """n/a"""