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authorLars Wendler <polynomial-c@gentoo.org>2020-12-14 11:56:09 +0100
committerLars Wendler <polynomial-c@gentoo.org>2020-12-14 11:56:09 +0100
commitaa4ae7bff0fcd4972c8258a53e979976dd7a7afc (patch)
tree2e733c82b6f9c3cf33036c4db4be2ec9029cbe56
parentmail-mta/postfix: bump to 3.6_pre20201212 (diff)
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app-emulation/virtualbox-modules: Fixed build with kernel-5.10
Thanks-to: jospezial <jospezial@gmx.de> Reported-by: Helmut Jarausch <jarausch@igpm.rwth-aachen.de> Closes: https://bugs.gentoo.org/751328 Package-Manager: Portage-3.0.12, Repoman-3.0.2 Signed-off-by: Lars Wendler <polynomial-c@gentoo.org>
-rw-r--r--app-emulation/virtualbox-modules/files/virtualbox-modules-6.1.16-linux-5.10-r0drv-memobj-fix-r0.patch96
-rw-r--r--app-emulation/virtualbox-modules/virtualbox-modules-6.1.16-r1.ebuild4
2 files changed, 100 insertions, 0 deletions
diff --git a/app-emulation/virtualbox-modules/files/virtualbox-modules-6.1.16-linux-5.10-r0drv-memobj-fix-r0.patch b/app-emulation/virtualbox-modules/files/virtualbox-modules-6.1.16-linux-5.10-r0drv-memobj-fix-r0.patch
new file mode 100644
index 00000000000..168d7c24f5a
--- /dev/null
+++ b/app-emulation/virtualbox-modules/files/virtualbox-modules-6.1.16-linux-5.10-r0drv-memobj-fix-r0.patch
@@ -0,0 +1,96 @@
+Index: vboxdrv/r0drv/linux/memobj-r0drv-linux.c
+===================================================================
+--- a/vboxdrv/r0drv/linux/memobj-r0drv-linux.c
++++ b/vboxdrv/r0drv/linux/memobj-r0drv-linux.c
+@@ -56,9 +56,12 @@
+ * Whether we use alloc_vm_area (3.2+) for executable memory.
+ * This is a must for 5.8+, but we enable it all the way back to 3.2.x for
+ * better W^R compliance (fExecutable flag). */
+-#if RTLNX_VER_MIN(3,2,0) || defined(DOXYGEN_RUNNING)
++#if RTLNX_VER_RANGE(3,2,0, 5,10,0) || defined(DOXYGEN_RUNNING)
+ # define IPRT_USE_ALLOC_VM_AREA_FOR_EXEC
+ #endif
++#if RTLNX_VER_MIN(5,10,0) || defined(DOXYGEN_RUNNING)
++# define IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC
++#endif
+
+ /*
+ * 2.6.29+ kernels don't work with remap_pfn_range() anymore because
+@@ -502,7 +505,43 @@
+ }
+
+
++#ifdef IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC
+ /**
++ * User data passed to the apply_to_page_range() callback.
++ */
++typedef struct LNXAPPLYPGRANGE
++{
++ /** Pointer to the memory object. */
++ PRTR0MEMOBJLNX pMemLnx;
++ /** The page protection flags to apply. */
++ pgprot_t fPg;
++} LNXAPPLYPGRANGE;
++/** Pointer to the user data. */
++typedef LNXAPPLYPGRANGE *PLNXAPPLYPGRANGE;
++/** Pointer to the const user data. */
++typedef const LNXAPPLYPGRANGE *PCLNXAPPLYPGRANGE;
++
++/**
++ * Callback called in apply_to_page_range().
++ *
++ * @returns Linux status code.
++ * @param pPte Pointer to the page table entry for the given address.
++ * @param uAddr The address to apply the new protection to.
++ * @param pvUser The opaque user data.
++ */
++static DECLCALLBACK(int) rtR0MemObjLinuxApplyPageRange(pte_t *pPte, unsigned long uAddr, void *pvUser)
++{
++ PCLNXAPPLYPGRANGE pArgs = (PCLNXAPPLYPGRANGE)pvUser;
++ PRTR0MEMOBJLNX pMemLnx = pArgs->pMemLnx;
++ uint32_t idxPg = (uAddr - (unsigned long)pMemLnx->Core.pv) >> PAGE_SHIFT;
++
++ set_pte(pPte, mk_pte(pMemLnx->apPages[idxPg], pArgs->fPg));
++ return 0;
++}
++#endif
++
++
++/**
+ * Maps the allocation into ring-0.
+ *
+ * This will update the RTR0MEMOBJLNX::Core.pv and RTR0MEMOBJ::fMappedToRing0 members.
+@@ -584,6 +623,11 @@
+ else
+ # endif
+ {
++# if defined(IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC)
++ if (fExecutable)
++ pgprot_val(fPg) |= _PAGE_NX; /* Uses RTR0MemObjProtect to clear NX when memory ready, W^X fashion. */
++# endif
++
+ # ifdef VM_MAP
+ pMemLnx->Core.pv = vmap(&pMemLnx->apPages[0], pMemLnx->cPages, VM_MAP, fPg);
+ # else
+@@ -1851,6 +1895,21 @@
+ preempt_enable();
+ return VINF_SUCCESS;
+ }
++# elif defined(IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC)
++ PRTR0MEMOBJLNX pMemLnx = (PRTR0MEMOBJLNX)pMem;
++ if ( pMemLnx->fExecutable
++ && pMemLnx->fMappedToRing0)
++ {
++ LNXAPPLYPGRANGE Args;
++ Args.pMemLnx = pMemLnx;
++ Args.fPg = rtR0MemObjLinuxConvertProt(fProt, true /*fKernel*/);
++ int rcLnx = apply_to_page_range(current->active_mm, (unsigned long)pMemLnx->Core.pv + offSub, cbSub,
++ rtR0MemObjLinuxApplyPageRange, (void *)&Args);
++ if (rcLnx)
++ return VERR_NOT_SUPPORTED;
++
++ return VINF_SUCCESS;
++ }
+ # endif
+
+ NOREF(pMem);
diff --git a/app-emulation/virtualbox-modules/virtualbox-modules-6.1.16-r1.ebuild b/app-emulation/virtualbox-modules/virtualbox-modules-6.1.16-r1.ebuild
index 29faf7632fd..28c26bd6c0c 100644
--- a/app-emulation/virtualbox-modules/virtualbox-modules-6.1.16-r1.ebuild
+++ b/app-emulation/virtualbox-modules/virtualbox-modules-6.1.16-r1.ebuild
@@ -29,6 +29,10 @@ MODULESD_VBOXDRV_ENABLED="yes"
MODULESD_VBOXNETADP_ENABLED="no"
MODULESD_VBOXNETFLT_ENABLED="no"
+PATCHES=(
+ "${FILESDIR}/${P}-linux-5.10-r0drv-memobj-fix-r0.patch" #751328
+)
+
pkg_setup() {
linux-mod_pkg_setup
BUILD_PARAMS="CC=$(tc-getBUILD_CC) KERN_DIR=${KV_DIR} KERN_VER=${KV_FULL} O=${KV_OUT_DIR} V=1 KBUILD_VERBOSE=1"