diff options
Diffstat (limited to 'SOURCES/0001-virt-vbox-Fix-VBGL_IOCTL_VMMDEV_REQUEST_BIG-and-_LOG.patch')
| -rw-r--r-- | SOURCES/0001-virt-vbox-Fix-VBGL_IOCTL_VMMDEV_REQUEST_BIG-and-_LOG.patch | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/SOURCES/0001-virt-vbox-Fix-VBGL_IOCTL_VMMDEV_REQUEST_BIG-and-_LOG.patch b/SOURCES/0001-virt-vbox-Fix-VBGL_IOCTL_VMMDEV_REQUEST_BIG-and-_LOG.patch deleted file mode 100644 index daf372e..0000000 --- a/SOURCES/0001-virt-vbox-Fix-VBGL_IOCTL_VMMDEV_REQUEST_BIG-and-_LOG.patch +++ /dev/null @@ -1,123 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Hans de Goede <hdegoede@redhat.com> -Date: Tue, 19 May 2020 12:21:30 +0200 -Subject: [PATCH] virt: vbox: Fix VBGL_IOCTL_VMMDEV_REQUEST_BIG and _LOG req - numbers to match upstream - -Until this commit the mainline kernel version (this version) of the -vboxguest module contained a bug where it defined -VBGL_IOCTL_VMMDEV_REQUEST_BIG and VBGL_IOCTL_LOG using -_IOC(_IOC_READ | _IOC_WRITE, 'V', ...) instead of -_IO(V, ...) as the out of tree VirtualBox upstream version does. - -Since the VirtualBox userspace bits are always built against VirtualBox -upstream's headers, this means that so far the mainline kernel version -of the vboxguest module has been failing these 2 ioctls with -ENOTTY. -I guess that VBGL_IOCTL_VMMDEV_REQUEST_BIG is never used causing us to -not hit that one and sofar the vboxguest driver has failed to actually -log any log messages passed it through VBGL_IOCTL_LOG. - -This commit changes the VBGL_IOCTL_VMMDEV_REQUEST_BIG and VBGL_IOCTL_LOG -defines to match the out of tree VirtualBox upstream vboxguest version, -while keeping compatibility with the old wrong request defines so as -to not break the kernel ABI in case someone has been using the old -request defines. - -Fixes: f6ddd094f579 ("virt: Add vboxguest driver for Virtual Box Guest integration UAPI") -Cc: stable@vger.kernel.org -Signed-off-by: Hans de Goede <hdegoede@redhat.com> -Upstream Status: https://lore.kernel.org/lkml/20200520195440.38759-1-hdegoede@redhat.com/ ---- - drivers/virt/vboxguest/vboxguest_core.c | 4 +++- - drivers/virt/vboxguest/vboxguest_core.h | 15 +++++++++++++++ - drivers/virt/vboxguest/vboxguest_linux.c | 3 ++- - include/uapi/linux/vboxguest.h | 4 ++-- - 4 files changed, 22 insertions(+), 4 deletions(-) - -diff --git a/drivers/virt/vboxguest/vboxguest_core.c b/drivers/virt/vboxguest/vboxguest_core.c -index b690a8a4bf9e..8fab04e76c14 100644 ---- a/drivers/virt/vboxguest/vboxguest_core.c -+++ b/drivers/virt/vboxguest/vboxguest_core.c -@@ -1520,7 +1520,8 @@ int vbg_core_ioctl(struct vbg_session *session, unsigned int req, void *data) - - /* For VMMDEV_REQUEST hdr->type != VBG_IOCTL_HDR_TYPE_DEFAULT */ - if (req_no_size == VBG_IOCTL_VMMDEV_REQUEST(0) || -- req == VBG_IOCTL_VMMDEV_REQUEST_BIG) -+ req == VBG_IOCTL_VMMDEV_REQUEST_BIG || -+ req == VBG_IOCTL_VMMDEV_REQUEST_BIG_ALT) - return vbg_ioctl_vmmrequest(gdev, session, data); - - if (hdr->type != VBG_IOCTL_HDR_TYPE_DEFAULT) -@@ -1558,6 +1559,7 @@ int vbg_core_ioctl(struct vbg_session *session, unsigned int req, void *data) - case VBG_IOCTL_HGCM_CALL(0): - return vbg_ioctl_hgcm_call(gdev, session, f32bit, data); - case VBG_IOCTL_LOG(0): -+ case VBG_IOCTL_LOG_ALT(0): - return vbg_ioctl_log(data); - } - -diff --git a/drivers/virt/vboxguest/vboxguest_core.h b/drivers/virt/vboxguest/vboxguest_core.h -index 4188c12b839f..77c3a9c8255d 100644 ---- a/drivers/virt/vboxguest/vboxguest_core.h -+++ b/drivers/virt/vboxguest/vboxguest_core.h -@@ -15,6 +15,21 @@ - #include <linux/vboxguest.h> - #include "vmmdev.h" - -+/* -+ * The mainline kernel version (this version) of the vboxguest module -+ * contained a bug where it defined VBGL_IOCTL_VMMDEV_REQUEST_BIG and -+ * VBGL_IOCTL_LOG using _IOC(_IOC_READ | _IOC_WRITE, 'V', ...) instead -+ * of _IO(V, ...) as the out of tree VirtualBox upstream version does. -+ * -+ * These _ALT definitions keep compatibility with the wrong defines the -+ * mainline kernel version used for a while. -+ * Note the VirtualBox userspace bits have always been built against -+ * VirtualBox upstream's headers, so this is likely not necessary. But -+ * we must never break our ABI so we keep these around to be 100% sure. -+ */ -+#define VBG_IOCTL_VMMDEV_REQUEST_BIG_ALT _IOC(_IOC_READ | _IOC_WRITE, 'V', 3, 0) -+#define VBG_IOCTL_LOG_ALT(s) _IOC(_IOC_READ | _IOC_WRITE, 'V', 9, s) -+ - struct vbg_session; - - /** VBox guest memory balloon. */ -diff --git a/drivers/virt/vboxguest/vboxguest_linux.c b/drivers/virt/vboxguest/vboxguest_linux.c -index 6e8c0f1c1056..32c2c52f7e84 100644 ---- a/drivers/virt/vboxguest/vboxguest_linux.c -+++ b/drivers/virt/vboxguest/vboxguest_linux.c -@@ -131,7 +131,8 @@ static long vbg_misc_device_ioctl(struct file *filp, unsigned int req, - * the need for a bounce-buffer and another copy later on. - */ - is_vmmdev_req = (req & ~IOCSIZE_MASK) == VBG_IOCTL_VMMDEV_REQUEST(0) || -- req == VBG_IOCTL_VMMDEV_REQUEST_BIG; -+ req == VBG_IOCTL_VMMDEV_REQUEST_BIG || -+ req == VBG_IOCTL_VMMDEV_REQUEST_BIG_ALT; - - if (is_vmmdev_req) - buf = vbg_req_alloc(size, VBG_IOCTL_HDR_TYPE_DEFAULT, -diff --git a/include/uapi/linux/vboxguest.h b/include/uapi/linux/vboxguest.h -index 9cec58a6a5ea..f79d7abe27db 100644 ---- a/include/uapi/linux/vboxguest.h -+++ b/include/uapi/linux/vboxguest.h -@@ -103,7 +103,7 @@ VMMDEV_ASSERT_SIZE(vbg_ioctl_driver_version_info, 24 + 20); - - - /* IOCTL to perform a VMM Device request larger then 1KB. */ --#define VBG_IOCTL_VMMDEV_REQUEST_BIG _IOC(_IOC_READ | _IOC_WRITE, 'V', 3, 0) -+#define VBG_IOCTL_VMMDEV_REQUEST_BIG _IO('V', 3) - - - /** VBG_IOCTL_HGCM_CONNECT data structure. */ -@@ -198,7 +198,7 @@ struct vbg_ioctl_log { - } u; - }; - --#define VBG_IOCTL_LOG(s) _IOC(_IOC_READ | _IOC_WRITE, 'V', 9, s) -+#define VBG_IOCTL_LOG(s) _IO('V', 9) - - - /** VBG_IOCTL_WAIT_FOR_EVENTS data structure. */ --- -2.26.2 - |