forked from Minki/linux
74a0032b85
failures where the hypervisor verifies page tables and uninitialized data in that range leads to bogus failures in those checks - Add any potential setup_data entries supplied at boot to the identity pagetable mappings to prevent kexec kernel boot failures. Usually, this is not a problem for the normal kernel as those mappings are part of the initially mapped 2M pages but if kexec gets to allocate the second kernel somewhere else, those setup_data entries need to be mapped there too. - Fix objtool not to discard text references from the __tracepoints section so that ENDBR validation still works - Correct the setup_data types limit as it is user-visible, before 5.19 releases -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmLKpf8ACgkQEsHwGGHe VUrc5w/8DIVLQ8w+Balf2TGfp5Sl3mPkg+eoARH29qtXhvVBs5KJB9sbT1IGnxao nE4yNeiIKhH5SEd17l11E7eWuUtNgZENLsUb3aiAdsItNS+MzOWQuEOPbnAwgJmk oKdxiI1SHiVoPy5KVXOcyAS90PSJIkhhxwgR5MInGdmpSUzEFsx5SY82ZfOjOkZU L7zCsJzeDfhJdWiR4N0MXWRaFbIvRxI1uXyqgv+Lo6JK5l8dyUUSEdWyLUqZ7E4M GFo6LwR3lskQM2bE9vBWS0h1X00d5oDMzfono8kZzRGA/11plZHRI007PCez8yZh 4sUnnxsfCy2YF8/8hs4IhrHZdcWW9XoN4gTUsjD0wekGTHhOEqu5qpAnVSrXbvvM ZfPF8vM+DLPTWQqAT0a4aj1vd1RflDIQPSXKDzJDjeF49zouAj1ae/3KSOYJDzN9 V6NGiKBnzj1rbtm0+8jOsTQusmh/oDage7uLlmel3hTfNOc2Ay0LXrJWcvqhj66V 4CtCd12sLeavin+mGptni6lXbsue61EolRtH44RvZJsXLVY8iclM4onl728xOrxj CBtJo6bd3oQYy0SQsysXGDVR7BSXtwAYfArYR8BrMTtgHxuyULt/BDoew4r7XADB Xxz7ADJZ3DI3Gqza5H6r89Tj6Oi3yXiBWUVUNXFCMYc6ZrqvZc0= =tOvF -----END PGP SIGNATURE----- Merge tag 'x86_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Prepare for and clear .brk early in order to address XenPV guests failures where the hypervisor verifies page tables and uninitialized data in that range leads to bogus failures in those checks - Add any potential setup_data entries supplied at boot to the identity pagetable mappings to prevent kexec kernel boot failures. Usually, this is not a problem for the normal kernel as those mappings are part of the initially mapped 2M pages but if kexec gets to allocate the second kernel somewhere else, those setup_data entries need to be mapped there too. - Fix objtool not to discard text references from the __tracepoints section so that ENDBR validation still works - Correct the setup_data types limit as it is user-visible, before 5.19 releases * tag 'x86_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Fix the setup data types max limit x86/ibt, objtool: Don't discard text references from tracepoint section x86/compressed/64: Add identity mappings for setup_data entries x86: Fix .brk attribute in linker script x86: Clear .brk area at early boot x86/xen: Use clear_bss() for Xen PV guests |
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