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| author | John Levon <john.levon@joyent.com> | 2020-05-26 13:57:13 +0000 |
|---|---|---|
| committer | John Levon <john.levon@joyent.com> | 2020-05-26 13:57:13 +0000 |
| commit | 5b2acc0949194447bba6e45a0fa44d0b5f42f208 (patch) | |
| tree | 7ea9eb87bc68fee386dd39035ce715e87a0e673c /usr/src/uts/i86pc/vm/seg_vmm.c | |
| parent | 8ca018083101bf1cb175869679bc123187fb1bab (diff) | |
| parent | 2a1277d3064386cd5c4e372301007aa330bf1d5e (diff) | |
| download | illumos-joyent-gcc9.tar.gz | |
mergegcc9
Diffstat (limited to 'usr/src/uts/i86pc/vm/seg_vmm.c')
| -rw-r--r-- | usr/src/uts/i86pc/vm/seg_vmm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/usr/src/uts/i86pc/vm/seg_vmm.c b/usr/src/uts/i86pc/vm/seg_vmm.c index faebf9ac36..beb5e81d53 100644 --- a/usr/src/uts/i86pc/vm/seg_vmm.c +++ b/usr/src/uts/i86pc/vm/seg_vmm.c @@ -14,12 +14,15 @@ */ /* - * VM - Virtual-Machine-Memory segment + * segvmm - Virtual-Machine-Memory segment * * The vmm segment driver was designed for mapping regions of kernel memory * allocated to an HVM instance into userspace for manipulation there. It * draws direct lineage from the umap segment driver, but meant for larger * mappings with fewer restrictions. + * + * seg*k*vmm, in contrast, has mappings for every VMM into kas. We use its + * mappings here only to find the relevant PFNs in segvmm_fault_in(). */ @@ -93,7 +96,7 @@ static struct seg_ops segvmm_ops = { /* - * Create a kernel/user-mapped segment. + * Create a kernel/user-mapped segment. ->kaddr is the segkvmm mapping. */ int segvmm_create(struct seg **segpp, void *argsp) |