How to enable Ext. features in VirtualBox?
Posted: Sun Nov 03, 2024 12:39 am
e.g. 1GB page. Since I saw these labels in the log file, there must be some means to activate this to some extent.
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How to enable Ext. features in VirtualBox?
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Re: How to enable Ext. features in VirtualBox?
Posted: Sun Nov 03, 2024 5:51 pm
Is your host Windows? If so, try disabling Hyper-V.
Re: How to enable Ext. features in VirtualBox?
Posted: Mon Nov 25, 2024 12:57 am
It doesn't work. As far as I can see, once this line appears in the log, the large page can be enabled.
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HM: HMR3Init: Attempting fall back to NEM: VT-x is not availableRe: How to enable Ext. features in VirtualBox?
Posted: Mon Nov 25, 2024 2:26 am
https://docs.oracle.com/en/virtualizati ... ifyvm.html
I wonder if this is helpful.
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--largepages on|off: If hardware virtualization and nested paging are enabled, for Intel VT-x only, an additional performance improvement of up to 5% can be obtained by enabling this setting. This causes the hypervisor to use large pages to reduce TLB use and overhead.Re: How to enable Ext. features in VirtualBox?
Posted: Mon Nov 25, 2024 12:16 pm
You mean can't be enabled, right?wishedtobe wrote: ↑Mon Nov 25, 2024 12:57 amAs far as I can see, once this line appears in the log, the large page can be enabled.
VirtualBox can't run 64-bit guests without hardware virtualization. If VT-x isn't available, VirtualBox is using Hyper-V.
Re: How to enable Ext. features in VirtualBox?
Posted: Sat Nov 30, 2024 5:38 am
I won't focus on the logs. Only by enabling it(1gb) myself, by software operation, can I know if he actually enabled it or not.
Re: How to enable Ext. features in VirtualBox?
Posted: Wed Dec 04, 2024 2:16 am
It's of no avail. Whether I have disabled Hv or not, it gives me a VERR_PAGE_TABLE_NOT_PRESENT if PSE flag set in PDPTE.
Re: How to enable Ext. features in VirtualBox?
Posted: Fri Dec 06, 2024 12:50 pm
Is Hyper-V actually disabled? According to some posts on the VirtualBox forums, Hyper-V may still be enabled even after you follow the normal procedure for disabling it.
Re: How to enable Ext. features in VirtualBox?
Posted: Sat Dec 07, 2024 7:49 pm
Unfortunately, this function is enabled by default, and it's apparently useless.wishedtobe wrote: ↑Mon Nov 25, 2024 2:26 am https://docs.oracle.com/en/virtualizati ... ifyvm.htmlI wonder if this is helpful.Code: Select all
--largepages on|off: If hardware virtualization and nested paging are enabled, for Intel VT-x only, an additional performance improvement of up to 5% can be obtained by enabling this setting. This causes the hypervisor to use large pages to reduce TLB use and overhead.
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Vboxmanage modifyvm $vm --cpuidsetRe: How to enable Ext. features in VirtualBox?
Posted: Sat Dec 07, 2024 8:13 pm
https://forums.virtualbox.org/viewtopic.php?p=515565
The plan already exists, but the functionality is not yet complete, so there's a
So "largepage" is not 1gb page.This log message indicates that the host OS already refuses to provide a 2 MB "large" page and forces VirtualBox to allocate smaller 4 kB pages, which is somewhat unusual that early.
The plan already exists, but the functionality is not yet complete, so there's a Code: Select all
Page1GB - 1 GB large page = 0 (1)Re: How to enable Ext. features in VirtualBox?
Posted: Sat Dec 07, 2024 8:30 pm
This may be the key. Virtual box + Windows + 1gb paging may not be supported.It works correctly on my Linux machine within VirtualBox.
Re: How to enable Ext. features in VirtualBox?
Posted: Sat Dec 14, 2024 10:31 pm
The same error also occurs on Linux. Perhaps he/she is using an old version of VirtualBox.wishedtobe wrote: ↑Sat Dec 07, 2024 8:30 pmThis may be the key. Virtual box + Windows + 1gb paging may not be supported.It works correctly on my Linux machine within VirtualBox.