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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:24:58 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:27:06 +0000
commit33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch)
tree406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1863685
parentadedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff)
downloadqemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz
qemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip
add launchpad bug reports without comments
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+ARM: HCR.TSW traps are not implemented
+
+On 32-bit and 64-bit ARM platforms, setting HCR.TSW is supposed to "Trap data or unified cache maintenance instructions that operate by Set/Way." Quoting the ARM manual:
+
+If EL1 is using AArch64 state, accesses to DC ISW, DC CSW, DC CISW are trapped to EL2, reported using EC syndrome value 0x18.
+If EL1 is using AArch32 state, accesses to DCISW, DCCSW, DCCISW are trapped to EL2, reported using EC syndrome value 0x03.
+
+However, QEMU does not trap those instructions/registers. This was tested on the branch master of the git repo.
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