Displaying 8 results from an estimated 8 matches for "bitmap_and".
2020 Feb 07
0
[RFC PATCH v7 38/78] KVM: introspection: add permission access ioctls
...kvm_introspection *kvmi;
+ unsigned long *dest;
+ int err = 0;
+
+ mutex_lock(&kvm->kvmi_lock);
+
+ kvmi = KVMI(kvm);
+ if (!kvmi) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ dest = (unsigned long *)((char *)kvmi + off_dest);
+
+ if (allow)
+ bitmap_or(dest, dest, requested, nbits);
+ else
+ bitmap_andnot(dest, dest, requested, nbits);
+
+out:
+ mutex_unlock(&kvm->kvmi_lock);
+
+ return err;
+}
+
+int kvmi_ioctl_event(struct kvm *kvm, void __user *argp)
+{
+ DECLARE_BITMAP(requested, KVMI_NUM_EVENTS);
+ DECLARE_BITMAP(known, KVMI_NUM_EVENTS);
+ size_t off_bitmap;
+ bool allow;
+ int err;
+...
2019 Aug 09
0
[RFC PATCH v6 05/92] kvm: introspection: add KVMI_GET_VERSION
...return false;
+ set_bit(KVMI_GET_VERSION, ikvm->cmd_allow_mask);
+
memcpy(&ikvm->uuid, &qemu->uuid, sizeof(ikvm->uuid));
ikvm->kvm = kvm;
@@ -290,6 +292,18 @@ int kvmi_ioctl_command(struct kvm *kvm, void __user *argp)
bitmap_from_u64(known, KVMI_KNOWN_COMMANDS);
bitmap_and(requested, requested, known, KVMI_NUM_COMMANDS);
+ if (!allow) {
+ DECLARE_BITMAP(always_allowed, KVMI_NUM_COMMANDS);
+
+ if (id == KVMI_GET_VERSION)
+ return -EPERM;
+
+ set_bit(KVMI_GET_VERSION, always_allowed);
+
+ bitmap_andnot(requested, requested, always_allowed,
+ KVMI_NUM_CO...
2020 Feb 07
0
[RFC PATCH v7 40/78] KVM: introspection: add KVMI_GET_VERSION
...memcpy(&kvmi->uuid, &hook->uuid, sizeof(kvmi->uuid));
+ set_bit(KVMI_GET_VERSION, kvmi->cmd_allow_mask);
+
kvmi->kvm = kvm;
return kvmi;
@@ -299,6 +301,18 @@ int kvmi_ioctl_command(struct kvm *kvm, void __user *argp)
bitmap_from_u64(known, KVMI_KNOWN_COMMANDS);
bitmap_and(requested, requested, known, KVMI_NUM_COMMANDS);
+ if (!allow) {
+ DECLARE_BITMAP(always_allowed, KVMI_NUM_COMMANDS);
+
+ if (id == KVMI_GET_VERSION)
+ return -EPERM;
+
+ set_bit(KVMI_GET_VERSION, always_allowed);
+
+ bitmap_andnot(requested, requested, always_allowed,
+ KVMI_NUM_CO...
2005 Jan 12
3
syslinux build fails with 2.6 linux headers
...sr/include/linux/bitmap.h:125: error: `BITS_PER_LONG' undeclared (first use in this function)
/usr/include/linux/bitmap.h: In function `bitmap_copy':
/usr/include/linux/bitmap.h:131: error: `BITS_PER_LONG' undeclared (first use in this function)
/usr/include/linux/bitmap.h: In function `bitmap_and':
/usr/include/linux/bitmap.h:142: error: `BITS_PER_LONG' undeclared (first use in this function)
/usr/include/linux/bitmap.h: In function `bitmap_or':
/usr/include/linux/bitmap.h:151: error: `BITS_PER_LONG' undeclared (first use in this function)
/usr/include/linux/bitmap.h: In fun...
2007 Apr 25
2
[LLVMdev] Work in progress patch to speed up andersen's implementation
...p_multi_p(bitmap);
/* Boolean operations on bitmaps. The _into variants are two operand
versions that modify the first source operand. The other variants
are three operand versions that to not destroy the source bitmaps.
The operations supported are &, & ~, |, ^. */
extern void bitmap_and (bitmap, bitmap, bitmap);
extern void bitmap_and_into (bitmap, bitmap);
extern void bitmap_and_compl (bitmap, bitmap, bitmap);
extern bool bitmap_and_compl_into (bitmap, bitmap);
#define bitmap_compl_and(DST, A, B) bitmap_and_compl (DST, B, A)
extern void bitmap_compl_and_into (bitmap, bitmap);
ext...
2020 Feb 07
78
[RFC PATCH v7 00/78] VM introspection
The KVM introspection subsystem provides a facility for applications
running on the host or in a separate VM, to control the execution of
other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs,
MSRs etc.), alter the page access bits in the shadow page tables (only
for the hardware backed ones, eg. Intel's EPT) and receive notifications
when events of interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place