New kernels

[xeno74]

Kernel 6.13-RC5-2 up and running on my AmigaOne X5000

I have seen my desktop icons disapear and reappear a few times now..

Thank you for testing the RC5-2.

Maybe Caja doesn’t like our new kernels. it uses a lot of CPU resources (40%) after the first login.
After a logout and login, Caja works with low CPU resources again.
Please use top, htop or the MATE System Monitor to see if Caja is the problem.

[kilaueabart]

System Monitor says I am using 6.13.0-rc5. I downloaded uImage-6.13-rc5-kvm but I am getting too senile to know what to do with it, so no rc5-2. I did try popping it in alongside uImage-6.13, but I didn't expect it to change anything.

[xeno74]

System Monitor says I am using 6.13.0-rc5. I downloaded uImage-6.13-rc5-kvm but I am getting too senile to know what to do with it, so no rc5-2. I did try popping it in alongside uImage-6.13, but I didn't expect it to change anything.

It is OK only to test the RC5 if you don’t need KVM.

Thank you for testing!

[xeno74]

FYI:

NTFS mount without the NTFS3 kernel module:

df -Th

Code: Select all

/dev/sda1   fuseblk   1023   6.7M   1017M   1%   /run/media/amigaone/NTFS_VOL

With NTFS3 kernel module:

Code: Select all

/dev/sda1   ntfs3   1023   6.7M   1017M   1%   /run/media/amigaone/NTFS_VOL

[xeno74]

Hi All,

Here is the RC6 of kernel 6.13 for the X1000 and X5000.

Download and further information: github.com

Please test the kernels.

Thanks,
Christian

[xeno74]

Alternative download link: linux-image-6.13-rc6-X1000_X5000.tar.gz (xenosoft.de)

[xeno74]

FYI because of the KVM HV issue:

I would prefer to keep the sanity check to minimize the risk of a page fault handler not supporting opportunistic write mappings. e500 is definitely the odd one out here.
What about adding a dedicated wrapper for getting a writable PFN? E.g. (untested)

kvm_wrapper.patch:

Code: Select all

diff -rupN a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
--- a/arch/powerpc/kvm/e500_mmu_host.c	2025-01-05 23:13:40.000000000 +0100
+++ b/arch/powerpc/kvm/e500_mmu_host.c	2025-01-08 07:23:50.786895563 +0100
@@ -444,7 +444,7 @@ static inline int kvmppc_e500_shadow_map
 
 	if (likely(!pfnmap)) {
 		tsize_pages = 1UL << (tsize + 10 - PAGE_SHIFT);
-		pfn = __kvm_faultin_pfn(slot, gfn, FOLL_WRITE, NULL, &page);
+		pfn = kvm_faultin_writable_pfn(slot, gfn, &page);	
 		if (is_error_noslot_pfn(pfn)) {
 			if (printk_ratelimit())
 				pr_err("%s: real page not found for gfn %lx\n",
diff -rupN a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
--- a/arch/x86/kvm/vmx/vmx.c	2025-01-05 23:13:40.000000000 +0100
+++ b/arch/x86/kvm/vmx/vmx.c	2025-01-08 07:28:21.392045189 +0100
@@ -6800,7 +6800,6 @@ void vmx_set_apic_access_page_addr(struc
 	struct page *refcounted_page;
 	unsigned long mmu_seq;
 	kvm_pfn_t pfn;
-	bool writable;
 
 	/* Defer reload until vmcs01 is the current VMCS. */
 	if (is_guest_mode(vcpu)) {
@@ -6836,7 +6835,7 @@ void vmx_set_apic_access_page_addr(struc
 	 * controls the APIC-access page memslot, and only deletes the memslot
 	 * if APICv is permanently inhibited, i.e. the memslot won't reappear.
 	 */
-	pfn = __kvm_faultin_pfn(slot, gfn, FOLL_WRITE, &writable, &refcounted_page);
+	pfn = kvm_faultin_writable_pfn(slot, gfn, &refcounted_page);	
 	if (is_error_noslot_pfn(pfn))
 		return;
 
diff -rupN a/include/linux/kvm_host.h b/include/linux/kvm_host.h
--- a/include/linux/kvm_host.h	2025-01-05 23:13:40.000000000 +0100
+++ b/include/linux/kvm_host.h	2025-01-08 07:30:38.770596975 +0100
@@ -1276,6 +1276,14 @@ static inline kvm_pfn_t kvm_faultin_pfn(
 				 write ? FOLL_WRITE : 0, writable, refcounted_page);
 }
 
+static inline kvm_pfn_t kvm_faultin_writable_pfn(const struct kvm_memory_slot *slot,
+                         gfn_t gfn, struct page **refcounted_page)
+{
+    bool writable;
+
+    return __kvm_faultin_pfn(slot, gfn, FOLL_WRITE, &writable, refcounted_page);
+}
+
 int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
 			int len);
 int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);

I have created a new RC6 of kernel 6.13 with this patch.

Download and further information: github.com

[xeno74]

Paolo has released a patch series for solving the KVM HV issue.

I compiled the RC6 of kernel 6.13 with Paolo‘s patch series today.

Download and further information: github.com

[xeno74]

I tested the RC6 of kernel 6.13 on my X5000/40 today. KVM HV works without any problems with the kvm_hv_final.patch.

[xeno74]

Hi All,

I released the RC7 of kernel 6.13 for the X1000 and X5000 today.

Download and further information: github.com

Please test the kernels.

Thanks,
Christian